Season eight of Stargate SG-1 began airing on July 9, 2004 on the US-American Sci-Fi Channel. The eighth season concluded on February 22, 2005, after 20 episodes on British Sky One, which overtook the Sci-Fi Channel in mid-season. The eighth season begins with the SG-1 team trying to revive Colonel Jack O'Neill after the events of the seventh season. At the end of the two-episode season opener, O'Neill is promoted to Brigadier General and assumes command of Stargate Command, while Samantha Carter is promoted to Lt. Colonel and assumes command of SG-1. The season arc centers around the growing threat of the Replicators and seemingly final defeat of the Goa'uld, races who had been introduced in the first season and third season of the show, respectively. The series also see the first appearance of the Free Jaffa Nation and Lucian Alliance that would come to play a larger role in the last two seasons.

Broadcast Episodes

Image Title Number Airdate Planet(s) Race(s) Enemies
New Order, Part 1 "New Order (Part 1 of 2)" 801 July 9, 2004 Earth, Hala, Orilla Asgard, Goa'uld, Human-form Replicator, Jaffa, Replicator Fifth
With the Stargate Program having been shut down and Colonel Jack O'Neill still in a stasis pod in Antarctica, Major Samantha Carter Teal'c travel to the Othala Galaxy to contact the Asgard but learn that the Replicators are back. Meanwhile, the new Stargate Command Commander, Dr. Elizabeth Weir and Dr. Daniel Jackson is to stay and negotiate with System Lords Amaterasu, Camulus and Yu-huang Shang Ti.
New Order, Part 2 "New Order (Part 2 of 2)" 802 July 9, 2004 Earth, Orilla Asgard, Goa'uld, Human-form Replicator, Jaffa, Replicator Fifth
Colonel Jack O'Neill's knowledge of the Ancients has managed to form a means to defeat the Replicators. Major Samantha Carter is still held prisoner by Fifth, who admits that he loves her. On Earth, the three System Lords test the operation of the weapon in Antarctica, by sending a ship to Earth. Later Dr. Daniel Jackson is also sent to Othala to fight the Replicators.
Lockdown "Lockdown" 803 July 23, 2004 Earth, KS7-535 Goa'uld Anubis
After Jack O'Neill is promoted to Brigadier General and commander of Stargate Command, and months after defeating Anubis' fleet, the Russians are combing the wreckage, where they encounter a strange entity. Later, the entity makes its way to the SGC to get off of Earth.
Zero Hour "Zero Hour" 804 July 30, 2004 Earth, P2X-887 Amran, Goa'uld, Jaffa Ba'al
Days before a visit from President Henry Hayes, Brigadier General Jack O'Neill has second thoughts about being the leader of Stargate Command. Also, an alien plant takes control of part of the SGC, and SG-1 is kidnapped by Ba'al.
Icon "Icon" 805 August 6, 2004 Earth, Tegalus Tegalan Soren
Dr. Daniel Jackson is declared MIA after he was in the middle of a World War on Tegalus, which the rebels have won. Jackson cannot reach home, as the rebels have taken control of the planet's Stargate, and he must rely on a small band of soldiers led by Jared Kane from the planet's military to take back the city and defeat the rebel leader, Soren if Jackson is to have any chance of getting back to Earth.
Avatar "Avatar" 806 August 13, 2004 Earth Goa'uld, Kull N/A
Teal'c tests the Virtual reality pods from P7J-989 SG-1 encountered six years ago, to simulate a Kull invasion of Stargate Command as a training tool for SG personnel. The test is a success, but when Teal'c asks them to make it harder he gets stuck in the simulation, and it turns out that the more he dies the more the likelihood that he will die in real life.
Affinity "Affinity" 807 August 20, 2004 Earth N/A The Trust
Teal'c moves into an apartment with the public, but his attempts to reduce crime in his area often lands him in trouble. While he befriends a local woman, Lt. Colonel Samantha Carter continues her relationship with Pete Shanahan.
Covenant "Covenant" 808 August 27, 2004 Earth, P4X-650 Asgard The Trust
When Alec Colson, a wealthy industrialist intends on letting the public know of the existence of alien life after finding evidence on the Battle of Antarctica, Lt. Colonel Samantha Carter attempts to intervene and convince him that Stargate Command is too important to be revealed. However, the SGC is not the only secretive organization that wants to silence Colson.
Sacrifices "Sacrifices" 809 September 10, 2004 Earth, Hak'tyl ll Goa'uld, Jaffa Moloc
The Hak'tyl Resistance plans on moving to another planet after Moloc finds out about the resistance. Rya'c intends to marry one of the Hak'tyl members. Teal'c and Ishta have an opportunity to take out Moloc.
Endgame "Endgame" 810 September 17, 2004 Earth, P3S-114, P4S-161, P4X-650 Jaffa, Tok'ra The Trust
Earth's Stargate goes missing after it is beamed away. Outside Earth, the Alpha Site loses contact with Earth and suspects something is wrong, while Teal'c finds out that every Jaffa on a planet is killed with no signs of battle. The rest of the team discover that The Trust is responsible for the missing Stargate.
Gemini "Gemini" 811 December 14, 2004 Earth, P4X-650 Asgard, Human-form Replicator, Replicator Fifth, Replicator Carter
SG-1 is shocked to see a duplicate of Lt. Colonel Samantha Carter, who reveals that she is a Replicator created by Fifth. She wishes to be destroyed with the Replicator disruptor, to prevent Fifth from getting his hands on her again, since he is heading straight for the Milky Way. However, the Tau'ri plan to have her help them defeat them, since she claims Fifth has created a cipher to become immune to the disruptor.
Prometheus Unbound "Prometheus Unbound" 812 December 21, 2004 Earth, Unnamed Jaffa, Oranian, Vala Mal Doran's people Lucian Alliance
Lt. General George S. Hammond returns and offers Dr. Daniel Jackson to go with him on board the Prometheus to find the missing Atlantis expedition. However, on the way they pick up a distress signal and investigate. There, a Kull warrior makes its way on board and imprisons Jackson, leaving the rest of the crew trapped on a damaged Lucian Alliance Al'kesh.
It's Good to Be King "It's Good to Be King" 813 January 4, 2005 Arkhan's World, Earth Arkhan's people, Jaffa Ares, Trelak
The System Lord Ares is planning on taking back his old territories to reinforce himself against Ba'al. One of his planets happens to be the new home of Harold Maybourne. SG-1 comes to warn him, but find out that he has become King, and apparently knows this is going to happen.
Full Alert "Full Alert" 814 January 11, 2005 Earth Goa'uld The Trust
Brigadier General Jack O'Neill finds Robert Kinsey in his home. He tells O'Neill that he needs help in taking down The Trust. However, in the process, he is taken and implanted with a Goa'uld, where he is trying to pit the Americans and Russians against each other when both parties accuse each other of having a Goa'uld spy within their ranks. If no one finds the truth, it may result in World War 3.
Citizen Joe "Citizen Joe" 815 January 18, 2005 Earth N/A N/A
Joe Spencer, a barber from Indiana buys a mysterious stone in a garage sale seven years ago, and ever since then, has received several visions concerning SG-1 and their missions to save the world.
Reckoning, Part 1 "Reckoning (Part 1 of 2)" 816 January 25, 2005 Chulak, Dakara, Delmak, Earth, Unnamed Asgard, Goa'uld, Human-form Replicator, Jaffa, Kull, Replicator, Tok'ra Anubis, Ba'al, Replicator Carter
The Replicators arrive in the Milky Way and begin an all out assault on the Goa'uld. After they are wiped out, they will turn to the Human populations for resources. Dr. Daniel Jackson is captured by Replicator Carter, in order to get into his memories from while he was ascended. In the meantime, Teal'c and Bra'tac plan on getting the Jaffa free once and for all, by taking the holy land on Dakara, one of Ba'al's strongholds.
Reckoning, Part 2 "Reckoning (Part 2 of 2)" 817 February 1, 2005 Chulak, Dakara, Delmak, Earth, Hadante, Juna, PJ2-445, Unnamed, Vyus Goa'uld, Human-form Replicator, Jaffa, Kull, Replicator, Tok'ra Anubis, Ba'al, Replicator Carter
After successfully taking Dakara, Teal'c and Lt. Colonel Samantha Carter realize that the temple has a weapon that can defeat the Replicators once and for all. However, they have to work fast, as the Replicators discover about the temple also, as well as Ba'al's forces, to destroy it. Meanwhile, the Replicators attack Stargate Command.
Threads "Threads" 818 February 8, 2005 Dakara, Delmak, Earth, Tartarus Ancient, Goa'uld, Jaffa, Tok'ra Anubis, Free Jaffa Nation
After the defeat of the Replicators, Dr. Daniel Jackson ends up in an Astral Diner, where Oma Desala offers him ascension again. Lt. Colonel Samantha Carter starts having second thoughts about marrying Pete Shanahan, after finding out her father is dying. Anubis plans on taking Dakara and using the superweapon to destroy every living thing in the galaxy.
Moebius, Part 1 "Moebius (Part 1 of 2)" 819 February 15, 2005 Earth Goa'uld, Jaffa Ra
Dr. Daniel Jackson hears that Catherine Langford has passed away. He is then given her entire collection, where he discovers a location of a Zero Point Module to contact Atlantis. The catch is, they have to travel back in time to Ancient Egypt to get it. However, their efforts alter the timeline, where Daniel Jackson is a teacher, Samantha Carter is a secretary, and Jack O'Neill has retired.
Moebius, Part 2 "Moebius (Part 2 of 2)" 820 February 22, 2005 Chulak, Earth Goa'uld, Jaffa Apophis, Ra
After discovering a second Stargate in Antarctica, the team is sent to Chulak, to get to Teal'c and go to Egypt for the Zero Point Module. However, in the process the team are captured, and Teal'c is once again the First Prime of Apophis.


Main characters

Recurring characters




  • Won Saturn Award for "Best Syndicated/Cable Television Series"
  • Won Saturn Award for "Best Supporting Actress on Television" (Amanda Tapping)




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