Ba’al alters the timeline, preventing the Stargate Program on Earth from occurring and restores the Goa’uld to power, with Qetesh (Vala) as his queen and Teal’c as his First Prime.

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SG-1 travels to the Ori home galaxy to find a device called the Ark of Truth that will end the war once and for all, but Vala’s husband, Tomin, wants to come along… and to make things worse, the IOA have their own plans. This movie marks the end of the Ori arc.

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The Asgard summon SG-1 to tell them that their experiments to halt their genetic degeneration have failed, meaning they are a dying race. Because of this, the Asgard have decided to give “everything [they] have and know” to the Tau’ri. When the Ori show up, the Asgard commit mass suicide, and in order to preserve the Asgard legacy, Carter puts up a time dilation field around the Odyssey to prevent its destruction.

In an attempt to capture Adria, the team uses Vala as bait, only to have Ba’al beam the Orici away in SG-1’s time of victory. When they track down the parasite, they discover Ba’al wants to end the reign of the Ori just as much as the SGC, and he’s taken on an unfamiliar form to do so.

Vala’s father, Jacek, makes a deal with the SGC for sanctuary in exchange for helping stop an attack on Earth. As Jacek attempts to repair his relationship with Vala, General Landry is inspired to reach out to his daughter, Dr Lam, and his ex-wife.

A former foe of Teal’c’s has turned to the way of Origin and bombed a Jaffa summit on a Jaffa world named Dar Eshkalon attempting to rekindle the council. The aftermath appears to have killed many Jaffa, and leaves Bra’tac hanging on to his life by threads. Teal’c now decides to go on a single-minded quest for revenge… and not even SG-1 can stop him.

The team gates to a planet where they discover that the DHD is a prop in an exhibit, in turn, when they ask for help they appear to have come out of nowhere. Now SG-1’s mistaken for hostage-taking rebels and they are forced to play the part in order to survive.

After SG-1 destroys a Lucian Alliance kassa shipment near the planet Rolan, the Lucian Alliance places a bounty on all of the members of the team, threatening national security and lives. Meanwhile, Mitchell returns to his hometown for a high school reunion, accompanied by Vala… and bounty hunters hot on their trail.

When SG-1 discovers a village tempted by Origin without any threats of destruction, they find that their own teammate, Daniel Jackson, has been turned into a Prior of the Ori. After he is captured, the team must decide whether he can be trusted. Meanwhile, Daniel claims to be able to destroy the Ori once and for all.

Carter experiments with Arthur’s Mantle even further, but her studies send her to an alternate universe where the Ori are only hours away from obliterating the planet. In order to return home, Carter must help, but when things finally seem to go her way, President Landry won’t allow Carter to return.