SGA Season Five Episode Guide
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EPISODE #: 501 AIR DATE: 07.11.2008
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After a conflict with Michael leaves several Atlantis personnel trapped, Colonel Carter leads a rescue mission – unaware that Michael is still nearby.
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EPISODE #: 502 AIR DATE: 07.18.2008
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When an alien organism incapacitates Dr. Keller, the team seeks help from an old friend recently revived from stasis.
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EPISODE #: 503 AIR DATE: 07.25.2008
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Ronon once again comes face-to-face with Tyre, one of his people who became a Wraith worshiper – but who now claims he has broken free of their influence.
!["The Daedalus Variations"](https://www.gateworld.net/wp-content/uploads/the-daedalus-variations-200x120.jpg)
EPISODE #: 504 AIR DATE: 08.01.2008
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The team boards the Daedalus when it shows up abandoned in orbit, only to find themselves skipping through parallel universes.
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EPISODE #: 505 AIR DATE: 08.15.2008
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The city of Atlantis becomes host to the minds of disembodied Replicators, led by someone very close to the team.
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EPISODE #: 506 AIR DATE: 08.22.2008
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Rodney McKay is stricken with a mental affliction that robs him of his knowledge and memories, causing him to revert to a childlike state.
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EPISODE #: 507 AIR DATE: 09.05.2008
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Sheppard and Beckett join a team investigating a hidden Wraith laboratory where Michael has been conducting genetic experiments.
![Teyla poses as a Wraith queen ("The Queen")](https://www.gateworld.net/wp-content/uploads/the-queen-200x120.jpg)
EPISODE #: 508 AIR DATE: 09.12.2008
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Teyla goes in disguise as a Wraith queen when Todd agrees to make a bold proposal to the leader of his alliance – not realizing that he has other intentions.
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EPISODE #: 509 AIR DATE: 09.19.2008
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Ronon and McKay join Dr. Keller on an off-world errand of mercy, and must track her through the forest when a Runner kidnaps her.
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EPISODE #: 510 AIR DATE: 09.26.2008
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When Daniel Jackson visits Atlantis, he and Dr. McKay discover a hidden lab that brings a new enemy knocking. The Daedalus welcomes a Wraith ally for a special project.
![The rogue Asgard ("The Lost Tribe")](https://www.gateworld.net/wp-content/uploads/the-lost-tribe-200x120.jpg)
EPISODE #: 511 AIR DATE: 10.10.2008
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Sheppard races to an Ancient laboratory to save McKay and Daniel Jackson before Todd arrives to destroy a weapon that has a devastating side-effect. Daniel uncovers the identity of the hostile new species.
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EPISODE #: 512 AIR DATE: 10.17.2008
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The Wraith arrive in a village where Dr. Beckett is working, and demand that the locals turn over a group of refugees who survived the Hoffan plague – or the entire village will be obliterated.
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EPISODE #: 513 AIR DATE: 10.24.2008
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A new coalition of human worlds puts the Atlantis team on trial for their alleged crimes against the Pegasus Galaxy.
!["The Prodigal"](https://www.gateworld.net/wp-content/uploads/the-prodigal-200x120.jpg)
EPISODE #: 514 AIR DATE: 11.07.2008
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The team fights to retake control of Atlantis when Michael infiltrates the control room to take Teyla's child and destroy the city.
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EPISODE #: 515 AIR DATE: 11.14.2008
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While being evaluated by the I.O.A. Richard Woolsey meets a beautiful scientist new to Atlantis, who is not what she appears. Sheppard is captured and tortured by an enemy he thought was dead.
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EPISODE #: 516 AIR DATE: 11.21.2008
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Rodney returns to Earth with Jennifer to witness the triumph of his rival, who believes he has solved the problem of global warming. But when the new technology goes horribly awry, Rodney must help shut down the deadly weather device.
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EPISODE #: 517 AIR DATE: 12.05.2008
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After Todd's hive ship shows up over Atlantis transmitting a distress call, the team discovers that he and his crew have been stricken with a disease they helped create.
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EPISODE #: 518 AIR DATE: 12.12.2008
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Dr. Keller's body is taken over by a cunning thief, while Keller finds herself imprisoned with a death sentence on another planet.
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EPISODE #: 519 AIR DATE: 01.02.2009
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In the city of Las Vegas, Detective John Sheppard must solve the case on a long string of unusual murders – perpetrated by a Wraith in hiding.
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EPISODE #: 520 AIR DATE: 01.09.2009
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The team learns that a rogue Wraith has acquired several Z.P.M.s to power a formidable new hive ship – and he is headed for Earth.