Richard Dean Anderson

The Stargate is an intergalactic gateway, developed by an ancient civilization, that links other planets from other solar systems to ours. The U.S. Air Force assembles a Stargate team headed by Colonel Jack O'Neill for interstellar peacekeeping missions.

An elite military unit (SG-1) must flee back to Earth when two members of their team inexplicably disappear into thin air. But they return to a world in which the Stargate--an ancient device which allows them to travel to hundreds of planets--was never discovered, and their own history has been erased. Now they must convince a dubious government and military that the timeline was altered by a powerful alien enemy (Ba'al) in order to conquer Earth,...