A team of explorers made up of soldiers and scientists travels through a Stargate, an ancient portal to other planets. They use the Stargate to explore new worlds, forge ties with friendly civilizations and protect Earth from hostile forces. The TV series is based on the theatrical film `Stargate'.
New Order (Part 1 of 2): Season Eight blasts off with Carter and Teal'c in search of the Asgard, trying to save O'Neill. But they're about to make a horrifying discovery... (S8, ep 1)
New Order (Part 2 of 2): While the Goa'uld threaten to attack Earth, SG-1 and the Asgard make a last, desperate stand against the Replicators, who have caught Major Carter. (S8, ep 2)
The SGC is put under quarantine after a mysterious infection leaves a Russian officer in the infirmary... but the disease may not be a disease at all. (S8, ep 3)
As General O'Neill tries to settle into his new job he faces his biggest crisis yet: the capture of SG-1 by the Goa'uld. (S8, ep 4)
SG-1's arrival on another planet sparks a civil war between the Rand Protectorate and the Caledonian Federation. Daniel tries to stop the fighting but ends up trapped. (S8, ep 5)
Teal'c is trapped in a virtual reality simulation in which he must defend the base from a Goa'uld super-soldier incursion. To help him, O'Neill joins the 'game'. (S8, ep 6)
Teal'c becomes the chief suspect in a murder investigation after he moves into an apartment off-base. Carter considers her future with Pete. (S8, ep 7)
A businessman threatens to expose the secrets of alien life to the world, forcing Stargate Command to bring him into the loop. (S8, ep 8)
When warrior leader Ishta (Jolene Blalock) is captured by Moloc, Teal'c launches a rescue mission. Watch out for a special appearance from Jeff Judge as Aron. (S8, ep 9)
End Game: The team is faced with a rescue mission like no other when the Stargate is stolen. (S8, ep 10)
A duplicate of Colonel Carter seeks help from Stargate Command in defeating the Replicator Fifth. She claims they've found a way to counter the Asgard's new weapon. (S8, ep 11)
Claudia Black (Farscape) is terrific as Vala, a former Goa'uld host who is trying to save her people. She and Daniel Jackson spar on the Prometheus. (S8, ep 12)
When the Goa'uld try to enslave a planet for the second time, SG-1 step in to help. (S8, ep 13)
Relations are strained between the US government and Russia, and Colonel Chekov pays a visit to General O'Neill with bad news. Security has been compromised. (S8, ep 14)
Dan Castellaneta, voice of Homer Simpson, guest stars as a barber plagued for years by visions of SG-1's missions. And now he's had enough. (S8, ep 15)
'You said we had a problem not a big galactic emergency.' While the Replicators attack the Goa'uld, the rebel Jaffa move on the temple of Ta'Kara. (S8, ep 16)
The Jaffa Resistance assembles an army to retake a holy city. Plus, Baal seeks help from Earth when he is faced with a threat common to both parties. (S8, ep 17)
Daniel is faced with another very difficult decision. Plus, O'Neill hits it off with a new staff member and Carter has doubts about Pete. Isaac Hayes guest stars. (S8, ep 18)
SG-1 travels back in time in a daring plan to steal a piece of technology from Ra, the powerful Goa'uld who ruled in ancient Egypt. (S8, ep 19)
Season Eight comes to an explosive climax with the alternative SG-1 trying to set right the time shift created by the original team. (S8, ep 20)