Lifeline (Stargate Atlantis)

"Lifeline" is the second episode of the fourth season, and the 62nd episode overall, of the science fiction television series Stargate Atlantis. The episode first aired in the United States on October 5, 2007, on the Sci Fi Channel, and subsequently aired October 16 on Sky One in the United Kingdom. It was written by executive producer Carl Binder, and directed by Martin Wood. The episode is a continuation of the previous episode, "Adrift", following Colonel Sheppard and his team as they perform a mission to steal a Zero Point Module from the Asurans. It was described by executive producer Joseph Mallozzi as a "big op eppy."^[1]

The episode was considered to be somewhat of a send off to Elizabeth Weir (played by the departing Torri Higginson).^[2] Although Wood was credited for directing, he was occupied with directing the movie Stargate: Continuum, so Andy Mikita did most of the actual directing for the episode. It received slightly lower ratings than "Adrift", but was still well received.