SG-1 searches for an ancient weapon which could help them defeat the Ori, and discover it may be in the Ori's own home galaxy. As the Ori prepare to send ships through to the Milky Way to attack Earth, SG-1 travels to the Ori galaxy aboard the Odyssey. The International Oversight committee have their own plans and SG-1 finds themselves in a distant galaxy fighting two powerful enemies.
as Lt. Col. Cameron Mitchell
as Lt. Col. Samantha Carter
as Teal'c
as Dr. Daniel Jackson
as Maj. Gen. Henry Landry
as Vala Mal Doran
as James Marrick
as Adria
as Tomin
as Doci
as Morgan Le Fay / Ganos Lal
as Col. Abe Ellis
as Chief Master Sgt. Walter Harriman
as Maj. Kevin Marks
as Hertis
as Col. Reynolds
as Merlin
as Alteran Woman
as The Immortal
as Alteran Woman #2
as Amelius
as Captain Binder
as Alteran Man
as Ori Warrior
as Prior #1
as Prior #2
as Prior #3
as Prior #4
as Prior #5
as Prior #6
as Odyssey SF Guard (uncredited)
