With the Ancients' city of Atlantis discovered in the Pegasus Galaxy by Stargate Command, Dr. Elizabeth Weir and Major Sheppard lead a scientific expedition to the ancient abandoned city. Once there, the team not only find themselves unable to contact Earth, but their explorations unexpectedly reawaken the Ancients' deadly enemies, The Wraith, who hunger for this new prey. Now with the help of newfound local allies like Teyla Emmagan, the Atlantis Team sets about to uncover their new home's secrets even as their war of survival against the Wraith begins.
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see all options Availability data: JustWatch
- Seasons
- 5
- Episodes aired
- 100
- Latest aired
- S05E20
- Total runtime
- 3d
Timeline when each season aired
- Season 1 July 2004 – January 2005 20 episodes
- Season 2 July 2005 – January 2006 20 episodes
- Season 3 July 2006 – February 2007 20 episodes
- Season 4 September 2007 – March 2008 20 episodes
- Season 5 July 2008 – January 2009 20 episodes
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S01E01 Rising (1)
July 15 · 45min find the promo
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A new Stargate team embarks on a dangerous mission to a distant galaxy, where they discover a mythical lost city -- and a deadly new enemy.
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S01E02 Rising (2)
July 15 · 41min find the promo
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Sheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith.
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S01E03 Hide and Seek
July 23 · 44min find the promo
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The Atlantis base is threatened when the team discovers that an alien entity is in the city. McKay's experiment with alien technology goes awry.
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S01E04 Thirty Eight Minutes
July 30 · 44min find the promo
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The team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate.
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S01E05 Suspicion
August 6 · 48min find the promo
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After a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst.
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S01E06 Childhood's End
August 13 · 44min find the promo
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Sheppard and the team visit a world where no one is over 24 years old -- because of a ritual suicide practice they believe keeps the Wraith at bay.
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S01E07 Poisoning the Well
August 20 · 42min find the promo
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The team finds a world whose people are on the brink of a discovery that may make them immune to the Wraith feeding.
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S01E08 Underground
August 27 · 44min find the promo
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Efforts to open trade relations with a species called the Genii turn sour when the team discovers their new "allies" have ulterior motives.
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S01E09 Home
September 10 · 42min find the promo
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McKay's efforts to harness the energy of an alien planet's atmosphere allows for a return trip to Earth -- but the team may not be able to return to Atlantis.
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S01E10 The Storm (1)
September 17 · 42min find the promo
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When a massive storm threatens the city, Atlantis is evacuated, only to be taken over by the team's newest enemy.
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S01E11 The Eye (2)
November 8 · 42min find the promo
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Major Sheppard plays a dangerous game of cat and mouse with soldiers who have seized control of Atlantis and taken Weir and McKay hostage.
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S01E12 The Defiant One
November 15 · 42min find the promo
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Sheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor.
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S01E13 Hot Zone
November 22 · 42min find the promo
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Nearly a third of Atlantis's residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city.
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S01E14 Sanctuary
November 29 · 44min find the promo
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The team finds a paradise world that would make an ideal sanctuary for those fleeing from the Wraith, but the local inhabitants believe their goddess will not permit it.
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S01E15 Before I Sleep
December 6 · 42min find the promo
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A woman is found in suspended animation in Atlantis, and the team is shocked to see that it is Dr. Weir herself, who tells them of her trip 10,000 years into the city's past.
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S01E16 The Brotherhood
January 3 · 44min find the promo
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The team searches for a valuable Zero Point Module rumored to be hidden on the planet Dagan. But their new allies have motives of their own.
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S01E17 Letters From Pegasus
January 10 · 44min find the promo
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Given a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones.
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S01E18 The Gift
January 17 · 42min find the promo
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Plagued by terrifying nightmares, Teyla begins to recall a time when she and her father were captured by the Wraith and subjected to disturbing experiments.
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S01E19 The Siege (1)
January 24 · 44min find the promo
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With a group of Wraith hive ships on the way to Atlantis, the team searches for a place to flee and a way to destroy the city. McKay leads a team to try and activate the Ancients' orbital weapons platform.
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S01E20 The Siege (2)
January 31 · 44min find the promo
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All hope seems lost, until Colonel Everett arrives suddenly from Earth. He is determined to defend the city until the arrival of a ZPM, brought by a new ship.