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.
Episode 1
New Order (1)
Jul 9, 2004
Carter and Teal'c go in search of the Asgard to try and save Colonel O'Neill, but discover that the Asgard's enemy has returned with a vengeance. The System Lords seek an alliance with Earth against a common enemy.
Episode 2
New Order (2)
Jul 9, 2004
While the Goa'uld threaten to attack Earth, SG-1 and the Asgard make a last, desperate stand against the Replicators, which have captured Major Carter and invaded the last outpost of the Asgard civilization.
Episode 3
Lockdown
Jul 23, 2004
The S.G.C. 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.
Episode 4
Zero Hour
Jul 30, 2004
General O'Neill tries to settle into his new job, but faces never-ending crises - including the capture of SG-1 by the Goa'uld.
Episode 5
Icon
Aug 6, 2004
Daniel is stranded on another planet after the team's arrival on an alien world sparks a violent civil war.
Episode 6
Avatar
Aug 13, 2004
Teal'c is trapped in a virtual reality simulation, in which he must defend the base from a Goa'uld super-soldier incursion.
Episode 7
Affinity
Aug 20, 2004
Teal'c becomes the chief suspect in a murder investigation after he moves into an apartment off-base. Carter considers her future with Pete.
Episode 8
Covenant
Aug 27, 2004
A businessman threatens to expose the secrets of alien life to the world, forcing Stargate Command to bring him into the loop.
Episode 9
Sacrifices
Sep 10, 2004
The impending wedding of his son is the least of Teal'c's worries when the Hak'tyl plan an uprising against the Goa'uld Moloc, driving a wedge between Teal'c and Ishta.
Episode 10
Endgame
Sep 17, 2004
The Stargate is stolen, leading SG-1 to discover that the Trust has taken control of an advanced ship in orbit. Teal'c investigates a series of wide-spread Jaffa deaths.
Episode 11
Gemini
Jan 21, 2005
A duplicate of Colonel Carter seeks help from Stargate Command in defeating the Replicator Fifth, who she claims has found a way to counter the Asgard's new weapon.
Episode 12
Prometheus Unbound
Jan 28, 2005
After the Prometheus responds to a distress call from a Goa'uld ship, Daniel Jackson finds himself a captive when Earth's ship is stolen.
Episode 13
It's Good to Be King
Feb 4, 2005
SG-1 comes to the aid of a world about to be invaded by the Goa'uld, only to discover that the local king is Earth's Harry Maybourne.
Episode 14
Full Alert
Feb 11, 2005
Relations between the U.S. and Russia are strained when Russian military leaders claim that the U.S. government has been compromised by the Goa'uld.
Episode 15
Citizen Joe
Feb 18, 2005
Jack is confronted in his home by an irate barber...who claims to know everything about the Stargate project and SG-1.
Episode 16
Reckoning (1)
Feb 25, 2005
The Replicators begin a systematic attack of the Goa'uld, forcing Baal to come to Earth for help. The Jaffa Resistance risk their entire movement in an attempt to retake a holy city in Baal's domain.
Episode 17
Reckoning (2)
Mar 4, 2005
The fate of the galaxy hangs in the balance as Sam and Jacob search for the only weapon capable of stopping the Replicator onslaught. O'Neill leads a defense of the S.G.C., while Daniel squares off against Replicator Carter.
Episode 18
Threads
Mar 11, 2005
While Daniel finds himself in a mysterious diner suspended between death and ascension, Jacob's fate takes an unexpected turn, Jack and Sam consider their romantic lives, and Anubis unleashes his plan for galactic destruction.
Episode 19
Moebius (1)
Mar 18, 2005
SG-1 travels back in time in a daring plan to steal a piece of Ancient technology from Ra, the powerful Goa'uld who ruled in ancient Egypt.
Episode 20
Moebius (2)
Mar 25, 2005
With the timeline changed by SG-1's actions in the distant past, an alternate version of SG-1 must use the newly-discovered time ship to set things right.