Lifeline (Stargate Atlantis) - Plot

Plot

To ensure the mission to steal a Zero Point Module is a success, Dr. McKay (David Hewlett) proposes to use Dr. Weir (Torri Higginson) and her nanites to access the Asuran collective and guide them; should the Asurans take her over, McKay would activate a kill switch on the nanites, which would also effectively kill Weir. With their experimental jumper ready, Sheppard (Joe Flanigan) leaves Teyla (Rachel Luttrell) in command of Atlantis. The jumper's hyperdrive works and they arrive over the Asuran homeworld (M7R-227). With Weir's access, Sheppard and Ronon (Jason Momoa) easily steal the Zero Point Module. McKay then finds a code that will cause the Asurans to attack the Wraith and convinces Sheppard to upload a programme to reactivate this dormant code.

McKay initiates an anti-Replicator field to protect them from the Asurans, but Oberoth (David Ogden Stiers) discovers this and sends a wave to override the field. Weir leaves McKay, confronts Oberoth and uses his power to freeze all the Asurans, even tricking him into believing that he has captured the team, all to buy Sheppard enough time to upload the programme. However, Weir struggles to keep Asurans frozen, and when Sheppard finds her just as she loses control, she orders him to leave her behind as the Asurans unfreeze and capture her. As the team escapes without Weir, they are assisted by the Apollo, who have found Atlantis with Colonel Carter's (Amanda Tapping) help and sends them back to Atlantis. Now fully powered, Sheppard sends the city to M35-117, a back-up planet, and makes a rough landing onto its ocean. Whilst the team mourns the loss of Weir, McKay regains contact with Stargate Command. Dr. Zelenka (David Nykl) announces that the Asurans have begun their attack against the Wraith, meaning Weir's sacrifice was not in vain. Carter tells Sheppard that they will miss Weir, though Sheppard vows to find her again.

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