When what appears to be a satellite crashes into Atlantis, the team becomes aware of strange behaviour on the base.
Episode rating
Cast of episode
39
36
11
7
3
1
1
1
- Lt. Colonel John Sheppard
- Dr. Elizabeth Weir
- Dr. Rodney McKay
- Ronon Dex
- Dr. Jennifer Keller
- Teyla Emmagan
- Colonel Samantha Carter
- Dr. Radek Zelenka
- Major Evan Lorne
- Major Jordan
- Chuck the Technician
- Replicator Gate Tech
- Marine
- Replicator
- Marine
- Rivers
- Marine
- Parker
- Atlantis Technician
- Sgt. Green
- Ellen