Ba'al travels back in time and prevents the Stargate program from being started. SG-1 must somehow restore history.
as Colonel Cameron Mitchell
as Colonel Samantha Carter
as Teal'c
as Dr. Daniel Jackson
as Vala Mal Doran
as Major General Hank Landry
as Major General Jack O'Neill
as Ba'al
as Lieutenant General George Hammond
as President Henry Hayes
as Camulus
as Chief Mst Sgt. Walter Harriman
as Apophis
as Nirrti
as Ra
as Helmsman
