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.
Ben Browder
Lt. Col. Cameron Mitchell
Amanda Tapping
Lt. Col. Samantha Carter
Christopher Judge
Teal'c
Michael Shanks
Dr. Daniel Jackson
Beau Bridges
Maj. Gen. Henry Landry
Claudia Black
Vala Mal Doran
Currie Graham
James Marrick
Morena Baccarin
Adria
