An international team of scientists and military personnel discover a Stargate network in the Pegasus Galaxy and come face-to-face with a new, powerful enemy, The Wraith.
Episodes
Season 4 - Episodes
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S04E01Adrift (2)
Aired: 2007-09-28
Show details expand_moreFloating in deep space with the city's protective shield failing, the team must do all they can to keep Atlantis alive. A radical injury threatens Dr. Weir's life.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E02Lifeline (3)
Aired: 2007-10-05
Show details expand_moreColonel Sheppard and his team embark on a risky mission to steal a Z.P.M. power module from the Replicators -- but must rely on a compromised Dr. Weir to succeed.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E03Reunion
Aired: 2007-10-12
Show details expand_moreWhen a group of Ronon's people enlist the team's help in raiding a Wraith weapons facility, Ronon reconsiders whether his future lies in Atlantis or with his friends.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E04Doppelganger
Aired: 2007-10-19
Show details expand_moreDuring an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E05Travelers
Aired: 2007-10-26
Show details expand_moreColonel Sheppard is captured by the inhabitants of a generational ship and their beautiful leader, who wish to use his ability to use Ancient technology for their own ends.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E06Tabula Rasa
Aired: 2007-11-02
Show details expand_moreWhen a virus causes amnesia in everyone except Teyla and Ronon, the Atlantis team must work together to find a cure before their memories fade entirely.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E07Missing
Aired: 2007-11-09
Show details expand_moreDuring a visit to New Athos, Teyla and Dr. Keller find themselves on the run from a primitive tribe of warriors.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E08The Seer
Aired: 2007-11-16
Show details expand_moreThe team meets a man with extraordinary prophetic abilities, who gives them a dark prediction about Atlantis's future. The Wraith seek a new alliance with Atlantis in their war with the Replicators.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E09Miller's Crossing
Aired: 2007-11-30
Show details expand_moreRodney McKay goes in search of his sister on Earth after she is kidnapped by the head of a powerful corporation.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E10This Mortal Coil (1)
Aired: 2007-12-07
Show details expand_moreA mysterious drone crashes into Atlantis, indicating that the Replicators may have found the city. But when Elizabeth Weir appears, the team realizes that the probe is just a part of a bigger mystery.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E11Be All My Sins Remember'd (2)
Aired: 2008-01-04
Show details expand_moreWith a plan to potentially extinguish the Replicator threat, the Atlantis team must seek an alliance with a fleet of Wraith ships.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E12Spoils of War
Aired: 2008-01-11
Show details expand_moreThe team finds their former Wraith ally's hive ship drifting in space, which leads them to a secret project that could turn the tide of a civil war.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E13Quarantine
Aired: 2008-01-18
Show details expand_moreAn automated lockdown traps Atlantis personnel in various parts of the city, each of them hoping the others will come to their rescue.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E14Harmony
Aired: 2008-01-25
Show details expand_moreColonel Sheppard and Dr. McKay must protect a child princess on a pilgrimage before she can become queen, and learn that she has dangerous enemies threatening her life.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E15Outcast
Aired: 2008-02-01
Show details expand_moreWhile on personal leave on Earth, Sheppard and Ronon learn that scientists have engineered a human-form Replicator -- who is now on the loose.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E16Trio
Aired: 2008-02-08
Show details expand_moreMcKay, Carter, and Keller are trapped in an underground chamber while on an off-world mission, with no apparent means of escape.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E17Midway
Aired: 2008-02-15
Show details expand_moreTeal'c visits Atlantis to counsel a headstrong Ronon, who is up for review by the I.O.A. But the two must work together when the Wraith invade the Midway space station in order to reach Earth.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E18The Kindred (1)
Aired: 2008-02-22
Show details expand_moreAs a mysterious new illness sweeps through the Pegasus Galaxy, Teyla is convinced by a vision that the father of her child is trying to communicate with her.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E19The Kindred (2)
Aired: 2008-02-29
Show details expand_moreThe team is shocked when an old friend, believed to be dead, miraculously returns to them. Teyla plans an escape from Michael's captivity.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
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S04E20The Last Man (1)
Aired: 2008-03-07
Show details expand_moreSheppard returns to Atlantis after a mission and finds the city abandoned, all systems dead -- and instead of ocean, sand dunes as far as the eye can see.
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper
Stars: Joe Flanigan, Amanda Tapping, Rachel Luttrell
Director(s): Brad Wright, Robert C. Cooper
Writer(s): Brad Wright, Robert C. Cooper










































