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Season guide

Stargate SG-1: Season 8

20 episodes Premiered Jul 9, 2004 Updated Sep 25, 2026

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.

Previously on Stargate SG-1

Season 8 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Stargate SG-1 Season 7.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.

Season overview

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.

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Season 8 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 8 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 8: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

Time Saved 0.7h Skipping 1 filler episode
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Mytharc (7): Crucial lore & season climaxes
Core (12): Character development & subplots
Side Quest (1): Standalone / filler
S8·E1 Mytharc

New Order (1)

Jul 9, 2004 · 44 min

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

S8·E2 Mytharc

New Order (2)

Jul 9, 2004 · 44 min

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

S8·E3 Core

Lockdown

Jul 23, 2004 · 44 min

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.

S8·E4 Core

Zero Hour

Jul 30, 2004 · 44 min

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.

S8·E5 Filler

Icon

Aug 6, 2004 · 44 min

Daniel is stranded on another planet after the team's arrival on an alien world sparks a violent civil war.

S8·E6 Core

Avatar

Aug 13, 2004 · 44 min

Teal'c is trapped in a virtual reality simulation, in which he must defend the base from a Goa'uld super-soldier incursion.

S8·E7 Core

Affinity

Aug 20, 2004 · 44 min

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·E8 Core

Covenant

Aug 27, 2004 · 44 min

A businessman threatens to expose the secrets of alien life to the world, forcing Stargate Command to bring him into the loop.

S8·E9 Core

Sacrifices

Sep 10, 2004 · 44 min

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.

S8·E10 Mytharc

Endgame

Sep 17, 2004 · 44 min

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.

S8·E11 Core

Gemini

Jan 21, 2005 · 44 min

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.

S8·E12 Core

Prometheus Unbound

Jan 28, 2005 · 44 min

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.

S8·E13 Core

It's Good to Be King

Feb 4, 2005 · 43 min

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.

S8·E14 Core

Full Alert

Feb 11, 2005 · 44 min

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.

S8·E15 Core

Citizen Joe

Feb 18, 2005 · 44 min

Jack is confronted in his home by an irate barber...who claims to know everything about the Stargate project and SG-1.

S8·E16 Mytharc

Reckoning (1)

Feb 25, 2005 · 44 min

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 cit

S8·E17 Mytharc

Reckoning (2)

Mar 4, 2005 · 44 min

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 D

S8·E18 Core

Threads

Mar 11, 2005 · 65 min

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 Anubi

S8·E19 Mytharc

Moebius (1)

Mar 18, 2005 · 44 min

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.

S8·E20 Mytharc

Moebius (2)

Mar 25, 2005 · 44 min

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.

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