Stargate Atlantis: Season 2, Episode 18

2 - 18: Michael

Lt. Michael Kenmore awakens in Atlantis's infirmary with no memory of how he got there — or who he is. Dr. Weir, Col. Sheppard and Dr. Beckett explain that he's a member of the expedition's military contingent who was captured by the Wraith during a dangerous mission. Although Sheppard's team rescued him, he was badly injured and has been unconscious for days.