On an off-world village Ronon (Jason Momoa) and Teyla (Rachel Luttrell) discover a group of warriors from Ronon’s homeworld, Sateda. These Satedans, led by Tyre (Mark Dacascos), have a plan to infiltrate a Wraith weapons facility but need the Atlanteans help to do it. Meanwhile, Col. Samantha Carter (Amanda Tapping) arrives on Atlantis as the new leader, and her first task is to execute new security protocols that leave Ronon feeling alienated and considering leaving Atlantis for good. Once inside the Wraith weapons facility, the two teams split up, and Sheppard (Joe Flanigan) and his team come under fire from the Wraith. Ronon escapes but Sheppard and company are captured. The Wraith force McKay (David Hewlett) to make changes to the Replicator base code using an actual Replicator the Wraith have imprisoned in the facility. Ronon and Carter mount a rescue operation, and, in the end, Ronon learns the truth about his old friends' new loyalties.
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