Season 1
20 episodes · Jul 15, 2004
The Atlantis expedition team, led by Dr. Elizabeth Weir, arrives in the Pegasus Galaxy and discovers the lost city of Atlantis. They encounter a powerful new enemy, the Wraith, and face various challenges to protect their new home while exploring the galaxy and seeking new allies.
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S1E1Rising (1)
Jul 15, 200445mA new Stargate team embarks on a dangerous mission to a distant galaxy, where they discover a mythical lost city -- and a deadly new enemy.
S1E2Rising (2)
Jul 15, 200441mSheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith.
S1E3Hide and Seek
Jul 23, 200444mThe Atlantis base is threatened when the team discovers that an alien entity is in the city. McKay's experiment with alien technology goes awry.
S1E4Thirty Eight Minutes
Jul 30, 200444mThe team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate.
S1E5Suspicion
Aug 6, 200448mAfter a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst.
S1E6Childhood's End
Aug 13, 200444mSheppard 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.
S1E7Poisoning the Well
Aug 20, 200442mThe team finds a world whose people are on the brink of a discovery that may make them immune to the Wraith feeding.
S1E8Underground
Aug 27, 200444mEfforts to open trade relations with a species called the Genii turn sour when the team discovers their new "allies" have ulterior motives.
S1E9Home
Sep 10, 200442mMcKay'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.
S1E10The Storm (1)
Sep 17, 200442mWhen a massive storm threatens the city, Atlantis is evacuated, only to be taken over by the team's newest enemy.
S1E11The Eye (2)
Nov 8, 200442mMajor Sheppard plays a dangerous game of cat and mouse with soldiers who have seized control of Atlantis and taken Weir and McKay hostage.
S1E12The Defiant One
Nov 15, 200442mSheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor.
S1E13Hot Zone
Nov 22, 200442mNearly a third of Atlantis's residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city.
S1E14Sanctuary
Nov 29, 200444mThe 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.
S1E15Before I Sleep
Dec 6, 200442mA 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.
S1E16The Brotherhood
Jan 3, 200544mThe 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.
S1E17Letters From Pegasus
Jan 10, 200544mGiven a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones.
S1E18The Gift
Jan 17, 200542mPlagued by terrifying nightmares, Teyla begins to recall a time when she and her father were captured by the Wraith and subjected to disturbing experiments.
S1E19The Siege (1)
Jan 24, 200544mWith 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.
S1E20The Siege (2)
Jan 31, 200544mAll 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.