In 'Stargate: The Ark of Truth,' the Stargate team races against time to find an ancient artifact that can defeat an evil god. They embark on a snow-adventure, facing brainwashing, self-destruct, and super-power. In an alternate timeline, they must navigate a wormhole to save their world.
When Ba'al travels back in time to prevent the Stargate program from ever starting, an SG-1 team must go back in time to restore the timeline and save humanity from a devastating future. They face a race against time, encountering aliens, changing history, and battling to secure Earth's future.