Stargate SG-1’s Key Episodes
Watch these and you’ll get everything you need for the major ongoing storylines, as SG-1 explores the galaxy and fights to protect Earth and its allies from alien threats that span three galaxies.
Stargate SG-1 premiered in 1997, when TV shows were more episodic — with more stand-alone episodes loosely connected by ongoing storylines. So of course we recommend watching more than the episodes on this list to really get the best of SG-1. Many of the show’s finest hours are not part of the main story arcs.
Source: https://www.gateworld.net/news/2020/11/watch-list-only-stargate-sg1-key-episodes/
Stargate SG-1 premiered in 1997, when TV shows were more episodic — with more stand-alone episodes loosely connected by ongoing storylines. So of course we recommend watching more than the episodes on this list to really get the best of SG-1. Many of the show’s finest hours are not part of the main story arcs.
Source: https://www.gateworld.net/news/2020/11/watch-list-only-stargate-sg1-key-episodes/
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- DirectorRoland EmmerichStarsKurt RussellJames SpaderJaye DavidsonAn interstellar teleportation device, found in Egypt, leads to a planet with humans resembling ancient Egyptians who worship the god Ra.
- DirectorMario AzzopardiStarsRichard Dean AndersonMichael ShanksAmanda TappingColonel Jack O'Neill is brought out of retirement to lead a new expedition back to Abydos, only to find an old friend, a new enemy and a far wider use of the Stargate.
- DirectorDennis BerryStarsRichard Dean AndersonMichael ShanksAmanda TappingThe team, now designated SG-1 are planning their next foray through the gate as they try to map out the variety of sites available to them and locate their missing friends. O'Neill asks that Teal'c be allowed to join his team but Gen. Hammond thinks that will be unlikely given that he is the host for a Goa'uld. Unknown to anyone, however, is that O'Neill's close friend, Maj. Charles Kawalsky, leader of SG-2, has been infected by a Goa'uld, an immature version that has not yet taken complete control of the host. Kawalsky is having regular blackouts during which the Goa'uld is trying to return to the gate. An MRI reveals what is wrong but it's unlikely the creature that has fused itself to Kawalsky's spine can be surgically removed. Meanwhile, Col. Kennedy arrives to question Teal'c who has pledged his loyalty to his new world.
- DirectorCharles CorrellStarsRichard Dean AndersonMichael ShanksAmanda TappingWith the Stargate program in danger of being terminated, the team is under pressure to find technology. Visiting a planet where they believe there is a creature that possesses the secret of invisibility, they encounter Apophis and his guards. Both sides receiving mortal wounds, they are aided by the planet's inhabitants, the Nox, a gentle people with a very large secret.
- DirectorBrad TurnerStarsRichard Dean AndersonMichael ShanksAmanda TappingSG-1 goes to the planet Cimmeria in search of allies against the Goa'uld. Upon arrival, Jack and Teal'c are trapped in a labyrinth, where the only exit is through Thor's Hammer, a device to destroy Goa'uld, but preserve the host. Daniel Jackson must destroy the device that could someday have saved his wife in order to free his friends.
- DirectorJonathan GlassnerStarsRichard Dean AndersonMichael ShanksAmanda TappingDaniel Jackson discovers that the Stargate was activated in 1945 and a young professor went through, never to return. Together with his still living fiancée, the SG1 team discover the now aged professor, naked and trapped in a decaying fortress, containing the secrets of an Ancient alliance. Will they be able to rescue him and escape to earth in time?
- DirectorMario AzzopardiStarsRichard Dean AndersonMichael ShanksAmanda TappingIt is time for Teal'c's son Rya'c to have his Prim'ta. Can Teal'c stop his son from being implanted with a Goa'uld and becoming a slave to Apophis?
- DirectorBrad TurnerStarsRichard Dean AndersonMichael ShanksAmanda TappingThe Goa'uld Hathor (one of the mothers of all Goa'uld), brainwashes the men of the SGC with pheromones, and nearly makes Jack a host to a larva conceived with Daniel. She flees after the unaffected women of Stargate Command retake the facility.
- DirectorWilliam GereghtyStarsRichard Dean AndersonMichael ShanksAmanda TappingOn their first visit to a new planet, SG-1 finds it subject to totally destructive volcanic activity and saves ten natives, the Tollan, a far more technologically advanced society. Their leader Omoc isn't grateful, nor interested in such a primitive race as the earthlings or any of the 'even more primitive' planets which are prepared to host them. Only one Tollan, Narim, shows an active interest in life on earth, especially in captain Samantha Carter and the cat Schrodinger she gives him, explaining his planet was destroyed after the Tollan supplied an unlimited energy source to a primitive neighboring planet which abused it for a cataclysmic weapon. Meanwhile, the White House authorized NID colonel Maybourne to take charge over the Tollan for military purposes, exactly Omoc's nightmare.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingFollowing a Stargate technical defect, O'Neill and Carter are stranded next to a Stargate in a cave on an icy wasteland. O'Neill is severely wounded and both are freezing. Will the SGC find and rescue them in time?
- DirectorDavid Warry-SmithStarsRichard Dean AndersonMichael ShanksAmanda TappingWhile collecting artifacts on a distant planet, Daniel Jackson is knocked out after touching a mirror-like object. He awakens in the same room but is unable to locate the other members of SG-1. Assuming that they left without him, he dials up his return home but gets there to find that he is in a different reality. In this world, General Jack O'Neill and Catherine Langford are in charge of the Stargate program; Hammond is a Colonel reporting to O'Neill; and Sam Carter is a civilian scientist working on the project (and also engaged to O'Neill). More importantly, Earth is under attack from the Goa'uld who have already killed over 1 billion people. Carter believes that somehow, Jackson is from a parallel dimension. When Jackson learns the point of origin of the Goa'uld attack, he wants to return to his own universe, believing that his Earth will be similarly attacked.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingThe Stargate team must justify the project's continuation when a doubtful senator, Head of the Congressional Military Appropriations Committee, comes to review the project's performance.
- DirectorDavid Warry-SmithStarsRichard Dean AndersonMichael ShanksAmanda TappingGeneral Hammond has tried everything to get the Senate's decision to shut down his Stargate program undone, but the President personally refuses to 'commit political suicide': the Stargate will be buried. Daniel's insistence -that the danger for Earth as a whole outweighs everything- convinces his colleagues to ignore Hammond's command and dial the address that the Goa'uld invasion started from in the alternate reality that he visited. They arrive not on a planet but a new, superior type of starship, already launched by hyper-drive. A 'video' proves it belongs to Apophis, who gives command to his son Klorel, whose host is none other than the team's young Abydonian friend, Skaara. Overpowering Skaara seems their best move, while Sam installs explosives in the death glider deck with a 24-hour timer just in case, but the Jaffa manage to liberate Klorel. Jack discovers that the ship goes far faster than expected.
- DirectorJonathan GlassnerStarsRichard Dean AndersonMichael ShanksAmanda TappingAs the Goa'uld attack fleet approaches Earth, all four members of the SG-1 team are taken prisoner. They get help from an unexpected source when Bra'tac, Teal'c's mentor, reveals that he is on board. Apophis has delayed the attack until his son Klorel is revived, giving them some time to prepare. SG-1 has used all of the C4 on one of the two ships but must find a way to dispose of the second. Back at Stargate Command, Lt. Col. Bert Samuels arrives as a Pentagon liaison officer but also reveals a new weapon they have developed. General Hammond is dubious. They begin to transport humans to an Alpha site in order to ensure the continuation of mankind.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingSamantha Carter becomes the host of a Goa'uld when she was trying to save the life of the previous host.
- DirectorWilliam GereghtyStarsRichard Dean AndersonMichael ShanksAmanda TappingO'Neill and the team return to Cimmeria, the planet where they destroyed Thor's Hammer to help Teal'c escape. They find that the Goa'uld have invaded and many of the people are dead. Can they help to find Thor's weapons to fight off the invasion before they are all captured or killed?
- DirectorWilliam GereghtyStarsRichard Dean AndersonMichael ShanksAmanda TappingTeal'c's son Rya'c is kidnapped by Apophis and SG1 tries to rescue him. When Rya'c is recovered he denounces his father and helps to capture the team. They escape, but will they be able to return to Earth and cure Rya'c?
- DirectorDuane ClarkStarsRichard Dean AndersonMichael ShanksAmanda TappingWhile O'Neill and Carter head to Washington to be decorated by the President and find a security leak, Jackson and Teal'c go to Abydos (after they unbury their stargate) to see Sha're's father. They arrive to tell him that they have been unsuccessful in finding Sha're, only to discover that she is already on Abydos. But they find that she is pregnant by Apophis and the baby holds the secrets of the Goa'uld.
- DirectorBrad TurnerStarsRichard Dean AndersonMichael ShanksAmanda TappingWhen Teal'c makes Sam Carter realize how valuable the knowledge left by Tok'ra Jolinar in her brain and the chance for an alliance can be, they convince General Hammond to let SG-1 attempt a meeting. They arrive on a planet which is deserted on the surface, but are awaited by well-camouflaged, armed Tok'ra who bring them to tunnels which they create by means of a mysterious crystal, which can also undo them afterward. Both parties are quite suspicious, the team feels like captives, and indeed, the Tok'ra leader Yosuuf fears they cannot be released, at least until the whole site is moved. Meanwhile, the Tau'ri barely overcome their suspicion against the Tok'ra Goa'uld biology (with symbiote), when asked to volunteer themselves as 'hosts', and Carter learns Martouf (and his symbiote, Lantash) was Jolinar's lover, hence has a special connection with her.
- DirectorBrad TurnerStarsRichard Dean AndersonMichael ShanksAmanda TappingThe attempt to forge an alliance with the Tok'ra seems a miserable failure, as SG-1 is practically imprisoned as a security risk and considered virtually hostile because 'blending', by agreeing to host a symbiote, is a bridge too far for each of them. When SG-3 arrives and informs Sam about her terminally ill father General Jacob Carter's quickly worsening condition, she realizes the symbiote's healing powers, confirmed to apply to cancer, make hosting an offer to good to refuse for him. Garshaw allows Sam and Jack to return and convince both generals to allow the plan, which is achieved. Meanwhile, the Tok'ra must hastily evacuate, destroying tunnels behind them, because a large-scale attack by Apophis's troops is expected soon, while Jacob meets his potential symbiotic partner Selmak and his equally terminal predecessor to help him decide. Jack verifies his strong suspicion there is traitor among the Tok'ra who is communicating with the Goa'uld.
- DirectorBrad TurnerStarsRichard Dean AndersonMichael ShanksAmanda TappingA climate control device is stolen from a planet and SG-1 is accused of the theft. They have to find it and restore it before the planet freezes. Then weather on Earth starts to unexpectedly change and the team believe that the device has been stolen by rogue NID agents. Will they find it in time and how did the NID travel off world?
- DirectorDavid Warry-SmithStarsRichard Dean AndersonMichael ShanksAmanda TappingSG-1 travels to a planet whose people are allies of the Asgard.
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingFollowing on a Tok'ra tip, SG-1 goes to a planet where they find the hated Apophis, nearly dying and under attack by death-gliders. They get back with him, realizing he was tortured by a rival system-lord with lasting harm. Apophis demands sanctuary, provided Dr. Fraiser can save his life, at least on account of the human host, but without a sarcophagus the prognosis for his symbiont is lousy; he offers all his Goa'uld knowledge in exchange for a new host, i.e. his life, revealing he was defeated by the terrible Sokar, once supreme system lord till an alliance lead by Ra and Apophis unseated him. The confrontation with Daniel, on account of Amaunet/Sha're and their son Klorel, and with former prime Teal'c, is bitter for all three. The Tok'ra send Martouf to warn the Tau'ri must hand over Apophis, but their warning is ignored- until Sokar proves he can bombard the iris with accelerated particles and ultimately cut through it, so the White House orders his extradition, but before they can he dies, unlike his host, an Ancient Egyptian temple scribe of Amun.
- DirectorCharles CorrellStarsRichard Dean AndersonMichael ShanksAmanda TappingA solar flare sends SG-1 back in time thirty years to 1969. Captured by military police at Cheyenne Mountain, they escape with the help of a young Hammond and then must find the Stargate so they can return to the present.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingColonel O'Neill awakens and is told by new staff everything in the SGC is different because he was just revived after 79 years of cryogenic hibernation, as sole survivor of a disastrous SG-1 mission on a Goa'uld-ruled planet. He accepts to undergo a 'high tech hypnosis' to retrieve information of use in the present war against them, which is going badly, involving earth's ten endangered colonies on other planets. However Major General Trofsky, the new base commander, and his female assistant tell Daniel and Sam, in different sections, that each of them is the sole survivor: it's all make-believe to probe their brains about the weaknesses of earth and the Alliance of the four races. Meanwhile, Teal'c awakes on earth, where it took Dr. Frasier months to save him from death; there was no trace of his teammates, and he resigns when General Hammond refuses permission to keep searching. O'Neill hears Goa'uld language, gets himself free and discovers he's on a fake SGC, frees Sam and Daniel, only to be stopped by the female Goa'uld system-lord Hathor, who employs both Horus and Serpent Jaffa and demands the humans' help against her rival system-lords.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingO'Neill, Carter and Jackson are trapped on Hathor's planet. Teal'c and Hammond go to Chulak to forge a rescue plan and recover the team.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingThe Asgard and three Goa'uld System Lords meet at Stargate Command to negotiate a treaty modification, but subterfuge and treachery threaten not only the success of the negotiations, but Earth itself.
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingResponding to a help cry from Kasuf, SG-1 and more USAF wipe out a Goa'uld Jaffa guard to save most of the slaves on Abydonia. When Amaunet turns her hand device on Daniel, he can't bring himself to shoot his beloved wife Sha're, but Teal'c saves him by fatally staff-shooting her, and Abydononian funeral tradition squashes his hope of a sarcophagus resurrection. Crushed by grief, Daniel has apparitions of Sha're and, once released from hospital, resigns from SGC claiming the quest for his wife was his reason to join. Daniel's former research assistant, Dr. Robert Rothman, succeeds him in SG-1; but Jack is sure he'll be back. Sha're (or Amaunet's posthumous manual spell?) keeps appearing to Daniel life-like, telling him to forgive Teal'c and together find their boy who, as Harsisis, has all the Goa'uld knowledge in his genetic memory, which, to the Goa'uld, means he must be killed. Daniel agrees to return, but has a secret agenda, too.
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingMartouf leads a Tok'ra delegation with crushing news for Carter: her father Jacob/Selmak has been captured by Sokar and imprisoned on Netu, an Egyptian name for hell, on a moon of planet Delmal, where prisoners are sent to suffer eternal torture, and from where no one returns; only Jolinar has ever escaped. SG-1 mounts a rescue operation with Martouf, top-priority being any information Selmak can offer about Sokar's plan to subjugate the other system lords, an unprecedented threat for all humanoids in the galaxy. Teal'c must pilot a Goa'uld ship and keep it in orbit as landing is impossible except by small pod, but first Martouf taps into Jolinar's memory, which is partially blocked by some trauma beyond physical torture. Only when they're down and in the custody of Netu's lord Bynarr, does Sam realize he is the key, in a 'personal' way, but not voluntarily, as she had thought. Sokar learns of their presence from Bynarr and orders the team and craft destroyed, but this also means there must be a way out. Bynarr's prime, Na'onak, has, and is himself, a major surprise.
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingNow that Apophis has revealed himself, he promises the prisoners to overturn Sokar, which requires extracting an irresistibly valuable secret, to which end he drugs Sam with the truth serum 'blood of Sokar.' Apophis also implants a memory device in, and gives the drug to, Jack to torture him using the persona of his young son that died, and Daniel for the location of his Harsesis son. Martouf's love for Jolinar makes him betray that the Tok'ra are on planet Entac - a convincing lie, so Apophis's plan to earn Sokar's gratitude, and then kill him when rewarded with the lordship of Netu, is on a shaky basis. Teal'c must help the Tok'ra Aldwin prepare a nuclear weapon to explode the whole moon when his ship arrives as their last chance to eliminate Sokar, but he decides to rescue SG-1 instead, by flying in the path of the rings device on Sokar's ship when he arrives.
- DirectorDavid Warry-SmithStarsRichard Dean AndersonMichael ShanksAmanda TappingThe SG-1 team is requested by the Tollan to participate in a trial concerning Skaara and whether he or the Goa'uld parasite, Klorel, has control of his body.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingCol. O'Neill is dismissed from the SGC for stealing alien technology, and is subsequently approached to participate in an even more covert Stargate operation.
- DirectorPeter F. WoesteStarsRichard Dean AndersonMichael ShanksAmanda TappingSG-1 believes they have finally found Kheb, a planet with a temple where they believe the child of Apophis and Sha're, a Harcesis with all the knowledge of the Goa'uld, is being held.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingReady to go on vacation, O'Neill is beamed away by the Asgard. Thor tells him that Earth is faced with an enemy even worse than the Goa'uld.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingSG-1 has to deal with a Replicator infestation on a Russian sub on Earth while Major Carter advises the Asgard about combating the menace in their galaxy.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingThe SGC is visited by a Tok'ra named Anise who brings some armbands used by the soldiers of a long extinct race, which are supposed to increase the abilities of the wearers. O'Neill, Carter and Jackson put the armbands on and it increases their physical strength, but it also causes them to make rash decisions. Can they get the armbands off before they cause their deaths?
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingAn old love of Teal'c approaches the SGC and the Tok'ra claiming that her Goa'uld symbiote has been convinced to defect with their help.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingWhen an SG-team member tries to assassinate the Tok'ra leader, it is believed that some of the SGC have been converted into Za'tarc - programmed assassins. The Tok'ra Freya comes to the SGC with Martouf to try and test all SG-team members. But the Za'tarc detector suggests that O'Neill and Carter are actually Za'tarcs. Is this correct and is there another Za'tarc at the SGC?
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingCol. O'Neill and Teal'c realize they and their friends are trapped in a time loop.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingThe SGC learn that the Russians have a Stargate of their own and they need the Americans' help with their problems with it that are affecting them both.
- DirectorAndy MikitaStarsRichard Dean AndersonMichael ShanksAmanda TappingWhen one of Daniel's professors dies in a lab explosion which might be related to the Goa'uld, he comes back to Chicago to investigate what really happened.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingTeal'c is on his home planet, Chulak, where there is rebellion among the Jaffa warriors. He is betrayed as a sacrilegious shol'va (traitor) by Rak'nor, son of a Jaffa friend of his father, and handed to Terok, the torturer of system lord Heru'ur. Ignorant of his fate, the other SG-1 members join Jacob in a risky attempt to take hold of a space mine using a Tok'ra ship piloted by Jacob. En route to Apophis' spaceship, the expedition finds out that Teal'c is being offered as a confidence-building present from Heru'ur to cement an alliance with Apophis against the other system lords, which would make the Goa'uld threat more dangerous than ever. They decide to save Teal'c, but their attempt fails. However, Teal'c's resistance to torture and clear conviction that Goa'uld are not gods finally convinces Rak'nor, who now bravely acts.
- DirectorDavid Warry-SmithStarsRichard Dean AndersonMichael ShanksAmanda TappingSG-1 delivers their newly confiscated Goa'uld mothership to help the Tok'ra evacuate their planet and deal with their disinformed Goa'uld spy in their midst.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingStranded in another galaxy while fleeing their attack on Apophis' fleet proves only the beginning of SG-1's problems as multiple enemies appear.
- DirectorPeter DeLuiseStarsRichard Dean AndersonMichael ShanksAmanda TappingSG-1 asks Bra'tac to help clear Teal'c's brainwashed mind. Bra'tac removes Teal'c's symbiote and Teal'c is forced to remember certain memories of his past in order to get back to the real Teal'c in the end. SG-1 is glad to have him back.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingAfter being rendered unconscious during an expedition, Carter's subsequently-ordered furlough is interrupted by a mysterious being with a message and growing affection for her.
- DirectorWilliam GereghtyStarsRichard Dean AndersonMichael ShanksAmanda TappingWith the death of Omoc, the subsequent sudden Tollan reconsideration of their tech embargo leads to SG-1 suspecting a government conspiracy.
- DirectorPeter F. WoesteStarsRichard Dean AndersonMichael ShanksAmanda TappingWhen Teal'c is trapped in the Stargate buffer, the team must juggle the technical challenges along with personal, interdepartmental and diplomatic rivalries to rescue him in time.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingIn a Tok'ra plan to wipe out the Goa'uld, Daniel goes undercover as Yu's servant to release a poison at a meeting of the system lords. Meanwhile a Goa'uld attack on the Tok'ra base leaves the rest of SG-1 with their hands full.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingAs the Goa'uld summit continues, Daniel finds himself face to face with Osiris. He fools him in the same fashion as he did with Yu, but cannot bring himself to cause the death of Sarah, Osiris's host. He remains to uncover information about the unknown master of Osiris. Lantash, having taken Lt. Elliot as a host, guides the rest of SG-1 in escaping the fallen Tok'ra base.
- DirectorAndy MikitaStarsRichard Dean AndersonMichael ShanksAmanda TappingA large asteroid is discovered on a collision course with Earth.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingOn an alien planet, SG-1 discovers an inactive android is the only survivor of the destruction of her civilization. They bring her back to the SGC for study and manage to reactivate her. Things take a turn for the worse when she "makes" a replicator bug for Daniel.
- DirectorWilliam WaringStarsRichard Dean AndersonMichael ShanksAmanda TappingAs Jackson suffers from a fatal dose of radiation, he struggles with the value of his life while his friends deal with the emotional and diplomatic repercussions.
- DirectorMartin WoodStarsRichard Dean AndersonMichael ShanksAmanda TappingWhile still dealing with the loss of Daniel Jackson the SGC is contacted by the Asgard who require assistance dealing with Anubis, who seems to have new shield technology that can repel Asgard weapons.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeMaster Bra'tac arrives with bad news: Teal'c's wife is deathly ill, and Teal'c leaves to be with her. Shortly thereafter, the gate is opened but nothing comes through. Then Carter discovers a very low power signal that is slowly building an overload powerful enough to destroy the Earth.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeAnubis' weapon continues to threaten Earth. Various plans are tried until Jonas Quinn suggests something simple that just might work. Meanwhile, Master Bra'tac has discovered the planet from which Anubis is launching the attack. He, Teal'c and Rya'c journey there to put a stop to it.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeWhen SGC detects an Goa'uld ship in orbit, SG-1 is dispatched with Jacob Carter to investigate. They find the ship to be abandoned with no discernible life signs and Sam determines it to be the same used to kidnap Thor. Once on board the Goa'uld vessel, they find that the crew had initiated a self destruct sequence. O'Neill would very much like to salvage the ship despite Jacob's warnings that it could be a Trojan horse. An examination of the computer core reveals that Thor may have been able to introduce a virus but Jacob was right: it's an ambush and the ship soon plunges in the ocean. SGC and the Navy mount a rescue operation.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe SG-1 team travels to the Antarctic science station when the scientists there discover an ancient body in the ice. The age of the ice core samples would indicate that the body predates mankind. As they thaw the body, it comes to life. It's a young woman who they call Ayiana. As Ayiana gains strength, those around her all fall ill having contracted an unknown virus which they believe Ayiana carried. The new arrival also shows healing powers and can seemingly cure any illness just by touch. As she does so however she weakens to the point of death. In the end, only Col. O'Neill remains untreated and SGC seeks the help of the Tok'ra who offer an unexpected solution.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeO'Neill's symbiont Kanan drags him to a planet ruled by the Goa'uld Ba'al, where Kanan was undercover. Ba'al captures and tortures O'Neil, whose only hope may lie with - Daniel Jackson?!?
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe Tok'ra are forced to evacuate their newly established base under attack from the Goa'uld. They flee to the SGC's Alpha site. Tensions rise between the allied factions, the Free Jaffa, Tau'ri, and Tok'ra. Jacob and Selmak feel the end of the Tok'ra is near and Sam finds a Naquadah generator has been sabotaged to function as a bomb. Jack suspects the recently arrived Tok'ra and attempts to weed out the traitor.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeSG-1 makes first contact with the planet Pangar. It seems to be a peaceful world that have recently discovered ancient Goa'uld ruins. They offer Earth their greatest discovery, a drug called Tretonin, which they say keeps them entirely disease free. In return, they want the gate addresses for specific worlds, most of which turn out to be Goa'uld home worlds. An investigation further reveals that the wonder drug is based on Goa'uld symbiotes and the Pangarans reveal another secret - they have a symbiote queen, found in the ancient ruins. When a Pangaran guard is seriously injured, SG-1 asks the Tok'ra for help. They soon realize that the queen is the founder of their race.
- DirectorPeter F. WoesteStarsRichard Dean AndersonAmanda TappingChristopher JudgeA television news crew has unearthed information about an Air Force project called "Prometheus". They believe it to be a generator, but know it uses Trinium, an element not found on Earth. In order to keep them quiet the Air Force allows them to film the X-303, a spaceship based on Asgard technologies, otherwise known as Prometheus. Things turn south when the news crew arm themselves and hold the Prometheus, as well as Sam and Jonas, hostage.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeHaving regained control of the X-303, the SG-1 team finds itself in an unknown part of space. Rescue comes in the form of the Asgard, specifically Thor, who needs their help. The Asgard home world has been overrun by the Replicators and they require SG-1's help as well as the relatively low tech X-303. The Asgard had set a trap for the Replicators and hoped to use a time dilation device that would give them the time they need to find a way to defeat them. The problem is that the Replicators have turned off the device and the Asgard want SG-1 to go in and activate it. They accept the assignment but to meet their objective, O'Neill will face a moral dilemma.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeTeal'c is having strange nightmares featuring Apophis in which he is human and a firefighter with the rest of his team alongside him.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeRiding in the elevator in the SGC, O'Neill is visited by Daniel Jackson who needs his help. Daniel tells him that Anubis is headed for Abydos to search for something called the Eye of Ra, a relic that would make Anubis all-powerful. It's essential that SG-1 go to Abydos and secure the Eye but no one has seen it - including Daniel - nor has anyone ever been able to find it. On the planet they see their old friend Skaara and with Daniel's help locate the Eye. They also find a tablet that speaks of a lost city of the ancients. When Anubis and his troops land in force there is little anyone can do to stop them. In the end it's left to Daniel to decide if he will try to stop Anubis - thereby breaking a cardinal rule of the Ancients.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeA group of nomads on an alien planet find Daniel Jackson naked in the middle of ruins and take him in. Jonas translates the tablet Daniel said was important and discovers that it describes the last city the Ancients were building before the plague. He surmises that the list of addresses Jack put into the computer while storing the Ancient data were Ancient outposts in temporal order. Thus the last of the addresses should be the "City of the Lost". SG-1 visits the planet and happens upon the nomadic people, now inhabiting the ruins of the Ancient city. There they find Daniel, but discover his memory is gone. They must recover his memories in order to discover the secret to defeating Anubis.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeAnubis's super weapon has been put out of commission, but Yu's fleet has been diverted to the other side of the galaxy by Yu himself, allowing Anubis to escape into hyperspace. Jonas has been captured by Anubis and Daniel is still aboard Anubis's ship, evading capture. Anubis uses the mind probe on Jonas, learns of Naquadria, and begins his attack on Kelowna. The Kelownans seek aid from the SGC. Jack and Sam arrive on Langara to discover that the Kelownans have given Anubis Naquadria in order to secure their safety. They communicate with Daniel who is attempting to free Jonas. Teal'c has convinced Yu's first prime to seek a new leader of the System Lords, Ba'al.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeA teenage boy shows up at the SGC claiming to be Jack O'Neill. He recalls a dream in which an Asgard was studying him. They determine that they must find this Asgard to fix what has been done to Jack.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeBra'tac and Teal'c encounter a heavily armed enemy with shielding protecting him from Goa'uld weaponry who took out two Goa'uld personal guards. They barely manage to defeat him and bring him back to SGC for study, but this new threat poses a greater problem for the Tau'ri.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe Tau'ri and Tok'ra have used their captured super-soldier to determine his planet of origin. With Daniel, Dr. Lee, and the Ancient device they found in the hands of Honduran kidnappers, SGC must find a way to retrieve them if they are to have any chance of defeating the newly encountered super-soldiers.
- DirectorWilliam WaringStarsRichard Dean AndersonAmanda TappingChristopher JudgeMaj. Carter has been set up with her brother Mark's friend, Pete Shanahan, a cop from Denver who thinks Carter works for the Air Force in a simple research capacity. Daniel Jackson is being visited in his dreams by his former lover, Sarah Gardner, who was possessed by the Goa'uld System Lord Osiris.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe president has asked that a documentarian go to SGC to create a film about its operations. His arrival is unwelcome to most and he begins to clash with the base personnel. Nevertheless, he conducts his interviews with SG-1 and the scientists in the employ of SGC. Meanwhile, an off-world SG team finds the remains of an Ancient city.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe documentarian still a thorn in their side, SGC encounters an unforeseen predicament. With half of SG-13 off-world engaging enemy Jaffa, SG teams 1, 5, and 7 go in as backup. In the midst of heavy fire, O'Neill takes a staff blast to the chest. Many deaths from the encounter hit SGC hard and Senator Kinsey orders a full investigation into the matter.
- DirectorPeter F. WoesteStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe newly inaugurated President of the United States is briefed by the Head of the Joint Chiefs of Staff on the Stargate program. Former Senator, now Vice President, Kinsey attempts to get his running mate to back his policies for the program, but the president decides to look into the situation himself. Kinsey gets Richard Woolsey to convince the president of his agenda.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeVice President Kinsey briefs Dr. Weir on the Stargate program before her meeting with the president. SG teams 1, 3, and 5 go off-world to attempt the extraction of a newly found Ancient repository device. Upon arriving at the location of the device, SG-1 comes under fire from Goa'uld ships. With no other way to disallow Anubis from claiming the knowledge for himself, Jack submits himself to the dangerous device.
- DirectorMartin WoodStarsRichard Dean AndersonAmanda TappingChristopher JudgeWith Jack having the knowledge of the Ancient repository once again in his mind, he and Daniel attempt to unearth the location of the Lost City of the Ancients. Bra'tac, bringing with him the news of an impending attack on the Tau'ri by Anubis, takes Teal'c to help him acquire ships and warriors for the defense of Earth. Dr. Weir attempts to cope with the overwhelming nature of her new job, while also dealing with the unrelenting ego of Vice President Kinsey.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeIn a last ditch effort, O'Neill activated an Ancient weapon in the Antarctic to defeat Anubis. With Jack still in stasis in the Ancient outpost buried in Antarctica, SG-1 tries to contact the Asgard. Meanwhile their new leader, Dr. Elizabeth Weir, tries to decide what to do about a request for peace talks from the Goa'uld System Lords.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe Asgard fleet has managed to destroy the Replicator ship, with Carter aboard, but cannot contain the debris. Talks break down with the System Lords, ending in a Ha'tak being dispatched to test Earth's new defensive capabilities. The Prometheus waits to engage the incoming enemy, but Thor arrives in the Daniel Jackson, with Teal'c aboard. They enlist the help of Daniel and Jack, still in stasis, to remove the threat of the replicators to the new Asgard homeworld.
- DirectorWilliam WaringStarsRichard Dean AndersonAmanda TappingChristopher JudgeGeneral O'Neill is still in the early days of commanding the SGC and faces a major problem when newly arrived Russian Col. Alexi Vaselov collapses in his quarters. Dr. Brightman's belief that Vaselof may be contagious seems correct when Daniel, who was with the Russian when he collapsed, apparently goes mad and tries to leave the base through the gate. O'Neill locks down the SGC but the problem isn't contagion: the essence of Anubis is alive and well and seeking a new host.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeWhen the Stargate gets beamed out of SGC in the middle of the night, Teal'c is stranded off-world. Dr. Jackson and Colonel Carter attempt to recover the gate.
- DirectorWilliam WaringStarsRichard Dean AndersonAmanda TappingChristopher JudgeThe Replicator Carter and the real Carter work together with the disruptor signal. The Replicator has a different plan.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeGeneral Hammond returns to SGC to take Dr. Jackson with him on a trip to Atlantis onboard the Prometheus. In the middle of their trip, the Prometheus picks up a distress signal and Hammond decides to investigate. Things get sticky when a Kull Warrior takes control of the Prometheus, leaving Hammond and his crew, minus Daniel Jackson, behind in a damaged Alkesh.
- DirectorWilliam GereghtyStarsRichard Dean AndersonAmanda TappingChristopher JudgeSG-1 is sent to warn Harry Maybourne that the Goa'uld System Lord Ares is coming to the planet where he was banished, and in the process they find what may be an Ancient time machine.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeEx-Vice President Kinsey comes to Jack informing him of the Trust's activities including what seems to be a plan for the Russians to reclaim the Stargate they lent to the United States. He decides to use Kinsey as their inside man with the Trust. Kinsey wears a wire for his meeting with the Trust to set up a meeting with a high-ranking Russian general. The plan goes south when the signals get jammed just as the Trust makes an astounding revelation to Kinsey and they beam out.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeAfter a long absence, Jacob Carter returns to the SGC to tell Jack that the galaxy is under threat of takeover by the Replicators. The Goa'uld are under attack from the Replicators and are quickly being eliminated. Ba'al's armies are being destroyed and he arrives at SGC to suggest they work together to defeat their common enemy. Carter's doppelganger, RepliCarter, is leading the attack and she has kidnapped Daniel Jackson in the hope of learning of any weapons the Ancients may have created that could defeat them. Jackson gets help from an unexpected source - the Ancient, Oma Desala - or so he thinks.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeSam and Jacob are on the planet Dakara trying to configure the Ancient's device to destroy the Replicators once and for all, helped partly by Ba'al and Daniel, who succeeds in freezing the Replicators by manipulating Carter's duplicate.
- DirectorAndy MikitaStarsRichard Dean AndersonAmanda TappingChristopher JudgeDaniel finds himself in a strange time and place - a diner where Oma is working as a waitress. She gives him a clear choice - he can choose to die or to ascend but if it's the latter, he will not be able to help his friends fight Anubis, who has yet to be disposed of. He strikes up a conversation with another patron, Jim, who has his own take on the situation. Meanwhile, Sam decides the time has come for her fiancé to meet her father, Jacob. Jacob is not well, however, something he has kept from Sam for several weeks. After Pete surprises her - he thinks he's found the perfect house for them - Sam realizes she has to come to grips with her feelings for someone else. Teal'c and Master Bra'tac have information that Anubis may be gathering what remains of his forces for an attack on Dakara.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeWith the threats of both the Replicators and the Goa'uld greatly diminished and the sister ship to the Prometheus, the Daedalus, now under construction, SG-1 is anxious to get a ride on the new ship. However, the mood is somewhat darkened by a phone call informing Dr. Jackson of Catherine Langford's death. After the funeral, Catherine's niece gives Daniel "a few odds and ends" that her aunt wanted him to have. Upon delivery it is discovered that almost her entire collection was shipped to Daniel's lab. He finds in one of her books a possible location of a ZPM, but scans of the area showed that it was no longer there. Daniel proposes that they use the Ancient's time machine to take it from Ra at Giza in 3000 BC.
- DirectorPeter DeLuiseStarsRichard Dean AndersonAmanda TappingChristopher JudgeSG-1 has changed the course of history and made the SGC virtually non-existent. Doctors Carter and Jackson have helped Brigadier General Hammond to find the Antarctic Stargate, but are not being allowed to help any further. They help Jack to power up the time machine, and he gets Hammond to allow them on the mission to Chulak to find Teal'c.
- DirectorAndy MikitaStarsBen BrowderAmanda TappingChristopher JudgeWith a new commander of the SGC comes a new leader of SG-1, Lt. Col. Cameron Mitchell, a former fighter pilot who flew an F-302 in the battle over Antarctica. However, he is deterred by the fact that all the other members of SG-1 are leaving for other ventures: Teal'c to manage the Jaffa Nation, Carter to Area 51 for alien R&D, and Dr. Jackson to Atlantis as an Ancient expert. Mitchell endeavors to keep the members of SG-1 for himself, but they are increasingly tough to convince.
- DirectorAndy MikitaStarsBen BrowderAmanda TappingChristopher JudgeUpon finding Merlin's testing grounds, Dr. Jackson, Teal'c, Col. Mitchell, and Vala uncover the hidden treasure including a book that tells the story of the Ancients coming to Earth from another galaxy and a strange alien device.
- DirectorBrad TurnerStarsBen BrowderAmanda TappingChristopher JudgeDaniel and Vala have used the Ancient device to inhabit the bodies of people in the Alterans' home galaxy. They have been taken by a Prior of the Ori to meet the Doci, one who speaks with the Ori, their gods. Daniel surmises that the Ori are what the Alterans who became the Ancients left behind and have ascended in a similar fashion, but without the restrictions.
- DirectorBrad TurnerStarsBen BrowderAmanda TappingChristopher JudgeA Prior of the Ori has established an ever-growing forcefield on a Jaffa-controlled planet called Kalana. A minor Goa'uld named Nerus, who engineered the multiple Gate connections required for the defeat of the Replicators, comes to the SGC with information on the event and offers his help.
- DirectorMartin WoodStarsBen BrowderAmanda TappingChristopher JudgeFollowing the death of a Jaffa on Earth and the disappearance of a prominent businessman, SG-1 starts an investigation into what remains of the Trust and into the actions of the Jaffa Nation. They discover that Ba'al is hiding on Earth after losing his forces to the Jaffa and that the Jaffa are secretly attempting his capture.
- DirectorPeter DeLuiseStarsBen BrowderAmanda TappingChristopher JudgeSG-1 investigates a planet that is said to be the home of the Warriors of Sodan, a legendary tribe of Jaffa said to have not served the Goa'uld in 5,000 years. In an encounter with the warriors, Mitchell deals a deadly blow to one of the Sodan and is captured and taken to their village. There he awaits a battle to the death as punishment for his crime.
- DirectorAndy MikitaStarsBen BrowderAmanda TappingChristopher JudgeThe Ori unleash a deadly plague on Earth, prompting a powerful ally from SG-1's past to come to their aid.
- DirectorAndy MikitaStarsBen BrowderAmanda TappingChristopher JudgeThe plague continues to spread among the US population and the President has quarantined the nation. Teal'c is pleading with the Jaffa High Council to reject Origin, but Gerak arrives, having been transformed by the Ori into a Prior. Cameron and Daniel seek the blood of the Prior that caused the plague in order to cure it, but have once again been captured by the Sodan.
- DirectorPeter DeLuiseStarsBen BrowderAmanda TappingChristopher JudgeLeader of the Hak'tyl and their representative on the Jaffa High Council, Ka'lel has fallen in with those who work against a democratic Jaffa nation. Things worsen when she incapacitates and turns a well-spoken brother Jaffa who promoted democracy. Bra'tac comes to President Hayes and SG-1 for help in finding a now missing Teal'c and uncovering the shadowy dealings in the Jaffa High Council. On Earth, Mitchell gets an old friend of his into a hospital where alien-based technology is used; hopefully, the advances they have made will be able to cure what ails him.
- DirectorPeter DeLuiseStarsBen BrowderAmanda TappingChristopher JudgeWhile investigating the source of an addictive corn-like crop, SG-1 becomes involved in a firefight. They are forced to fall back to the gate, but as Daniel is dialing, both the Stargate and the DHD are beamed away.
- DirectorPeter DeLuiseStarsBen BrowderAmanda TappingChristopher JudgeSam manages to activate an Ancient device they found at the Glastonbury site and she and Mitchell are shifted into a phase that makes them invisible to everyone. Daniel soon figures out just what is going on but Dr. Lee's proposed solution sends Daniel to the same plane as Sam and Mitchell. There he is able to translate information explaining that Merlin had created a weapon against the Ori - and provides a gate address where it can be found. Meanwhile, Teal'c travels to a Jaffa planet that has sent out a distress call. The two events are related.