As the team embarks upon its tenth year, Vala, a former Goa'uld host turned freedom-fighter, joins SG-1 in their battle to defend the galaxy from the holy war of the Ori. Having discovered the existence of a weapon capable of defeating the Ori, the team is now in a race against time to find it before more systems fall to the influence of the Priors and the threat of the newly arrived Origin fleet. The season is continued with direct-to-DVD film Stargate: The Ark of Truth.
All episodes — Season 10
S10 E1Flesh and Blood
Jul 14, 20068.644 min
As the Ori invade the Jaffa planet Chulak, Vala and Daniel must deal with their leader: Vala's young daughter, rapidly aged by the Ori to serve their purposes.
S10 E2Morpheus
Jul 21, 20068.144 min
SG-1 investigates a problem off-world and soon finds that they have become victims themselves: they cannot stay awake. Meanwhile, Vala Mal Doran undergoes an evaluation on Earth, hoping to join SG-1.
S10 E3The Pegasus Project
Jul 28, 20068.944 min
Daniel and Vala travel to Atlantis in search of Merlin's anti-Ori weapon, while Sam, and Mitchell join forces with Dr. McKay to lock out the Ori supergate.
S10 E4Insiders
Aug 4, 20067.444 min
When Ba'al comes to Earth seeking help, Stargate Command must capture his clones and determine which one is the genuine article.
S10 E5Uninvited
Aug 11, 20067.344 min
Teal'c discovers a world where people are being savagely attacked by an elusive creature, leading SG-1 to a stunning discovery about its potential origin.
S10 E6200
Aug 18, 20068.144 min
Martin Lloyd seeks out SG-1 for assistance when his failed TV show based on the real Stargate program becomes a feature film.
S10 E7Counterstrike
Aug 25, 20067.644 min
The Jaffa take the fight to the Ori, using a genocidal weapon on their new worshipers and landing SG-1 in the middle of a war they can't control.
S10 E8Memento Mori
Sep 8, 20067.744 min
Stricken with amnesia and on the run, Vala takes a job as a waitress as she tries to piece together who she is and what happened to her.
S10 E9Company of Thieves
Sep 15, 20067.244 min
Cameron Mitchell must go undercover inside the deadly Lucian Alliance to prevent his teammates from becoming casualties of an Alliance civil war.
S10 E10The Quest (1)
Sep 22, 20068.544 min
SG-1 races against Baal in the hunt to find the Sangraal, Merlin's anti-Ori weapon, and comes up against a series of ancient trials.
S10 E11The Quest (2)
Apr 13, 20078.644 min
When the team finds Merlin himself, they must help him complete the Sangraal weapon before Adria and her Ori forces can track them down.
S10 E12Line in the Sand
Apr 20, 20077.944 min
SG-1 tries to defend a planet from the Ori by hiding its people in another dimension. Vala attempts to convince her husband Tomin of the Ori's true motives.
S10 E13The Road Not Taken
Apr 27, 20076.944 min
An experiment gone wrong pulls Samantha Carter into a parallel reality, where she must save Earth from an Ori assault before she will be allowed to return home.
S10 E14The Shroud
May 4, 20078.644 min
When SG-1 discovers that Daniel Jackson has been turned into a Prior of the Ori, they must determine whether or not his plan to destroy the Ori is genuine.
S10 E15Bounty
May 11, 20077.343 min
When the Lucian Alliance puts a bounty on SG-1's heads, Cameron Mitchell finds himself a target while attending his high school reunion.
S10 E16Bad Guys
May 18, 20077.543 min
SG-1 realizes they have stepped through the gate into another planet's museum -- but are mistaken for a band of zealous rebels who have taken hostages.
S10 E17Talion
Jun 1, 20076.944 min
When a terrorist attack decimates a Jaffa summit Teal'c strikes out on a quest for revenge, believing that the perpetrator is one of his own pupils.
S10 E18Family Ties
Jun 8, 20076.944 min
Earth provides sanctuary for Vala's estranged, con artist father after he provides intel about a Jaffa plot to attack the planet.
S10 E19Dominion
Jun 15, 20078.144 min
SG-1 hatches an elaborate plan to try and capture Adria, using Vala as bait.
S10 E20Unending
Jun 22, 20078.744 min
Trapped on board the Odyssey, the members of SG-1 must live out the rest of their lives together when Carter activates a time dilation field to save the ship from destruction.