Stargate SG-1: Season 4, Episode 22 - ProjectFreeTV

4 - 22: Exodus

The SGC are loaning their Goa'uld Mothership to their good friends and allies, the Tok'ra, so they will be able to move to a planet that is not on the gate system. However, Tanith is caught out and tells Apophis where the Tok'ra are.