S1.E1 ∙ The Devil Take the Blue Tongue FlyThu, Jul 6, 1972Years of drought have brought plague to a sheep property, and it takes the consolidated efforts of Delta and the army to prevent a national disaster.Rate
S1.E2 ∙ StresspointThu, Jul 13, 1972A migrant worker is blamed for a death that causes delays in the building of two Navy destroyers.Rate
S1.E3 ∙ Wish Upon a Fallen StarWed, Oct 8, 1969The search for a space capsule carrying dangerous viruses becomes a race against time.Rate
S1.E4 ∙ A Pocketful of BonesWed, Oct 15, 1969Wall paintings discovered inside a cave appear to be Aboriginal relics, but a nearby skeleton causes Petri and Fitch to think otherwise.Rate
S1.E5 ∙ Welcome to SunhavenWed, Oct 22, 1969When a tourist dies after eating polluted oysters, Inger Petri must risk her life in order to prove a theory about the cause of the pollution.Rate
S1.E6 ∙ The Trouble with DaisyWed, Oct 29, 1969When a dairy family's third-rate produce leads them to struggle to make it pay, the Delta team have to abandon science in favour of female cunning.Rate
S1.E7 ∙ There's a Lot of It AboutWed, Nov 5, 1969The Delta organisation discover an unusual creeper weed, marsdenia, which contains medically valuable pain-killing properties.Rate
S1.E8 ∙ The InitiatesWed, Nov 12, 1969A visit to a school that studies a primitive New Guinean tribe uncovers something more sinister than anthropological studies.Rate
S1.E9 ∙ Delicate BalanceWed, Nov 19, 1969An estimation of the mineral content of beach sands leads to an explosive confrontation between a conservationist and a miner.Rate
S1.E10 ∙ A Beautiful BurnWed, Nov 26, 1969To prevent future bushfires, Delta creates experimental firebreaks. A bush fire brigade officer scoffs at progress and is the cause of the death of one man in a spectacular bushfire.Rate
S1.E11 ∙ D Is for DestructionWed, Dec 3, 1969The Delta team investigate a human problem of how to deal with an intelligent child who cannot or will not learn to read.Rate
S1.E12 ∙ R.I.P.Wed, Dec 10, 1969Delta operator Jackie finds suspense and terror in an abandoned mining ghost town in the Blue Mountains.Rate