While this episode is supposed to be set on the same planet (Cimmeria) as the first season episode "Thor's Hammer", the physical setting of the Stargate, and the landscape around it, are very different between the 2 episodes.
SG-1 goes to Cimmeria after viewing the situation through the MALP but there is no MALP on the planet when they arrive.
Gairwyn refers to "Kendra and her family" yet in the original Season 1 episode, Thor's Hammer, Kendra lived alone and had no family. At best, she might have recently married and perhaps just barely given birth in the intervening time.
Gairwyn's husband and his brothers have just been killed trying to contact Stargate Command for help, yet she recovers from any grief abnormally fast and bears no enmity against SG-1 despite the fact that they just made her a widow. At the end of the show, in fact, she seems remarkably cheerful.