Stargate Atlantis

Season 5, Episode 18

Episode Title: Identity

Air Date: 2008-12-11

Overview:

Dr. Jennifer Keller's body is inadvertently taken over by a cunning thief, Neeva Casol. While Neeva tries to escape Atlantis, Keller finds herself imprisoned with a death sentence on another planet, forcing the team into a race against time to return Keller to her original body before she is put to death.