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.
Episode 1
Rising (1)
Jul 15, 2004
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.
Episode 2
Rising (2)
Jul 15, 2004
Sheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith.
Episode 3
Hide and Seek
Jul 23, 2004
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.
Episode 4
Thirty Eight Minutes
Jul 30, 2004
The team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate.
Episode 5
Suspicion
Aug 6, 2004
After a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst.
Episode 6
Childhood's End
Aug 13, 2004
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.
Episode 7
Poisoning the Well
Aug 20, 2004
The team finds a world whose people are on the brink of a discovery that may make them immune to the Wraith feeding.
Episode 8
Underground
Aug 27, 2004
Efforts to open trade relations with a species called the Genii turn sour when the team discovers their new "allies" have ulterior motives.
Episode 9
Home
Sep 10, 2004
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.
Episode 10
The Storm (1)
Sep 17, 2004
When a massive storm threatens the city, Atlantis is evacuated, only to be taken over by the team's newest enemy.
Episode 11
The Eye (2)
Nov 8, 2004
Major Sheppard plays a dangerous game of cat and mouse with soldiers who have seized control of Atlantis and taken Weir and McKay hostage.
Episode 12
The Defiant One
Nov 15, 2004
Sheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor.
Episode 13
Hot Zone
Nov 22, 2004
Nearly a third of Atlantis's residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city.
Episode 14
Sanctuary
Nov 29, 2004
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.
Episode 15
Before I Sleep
Dec 6, 2004
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.
Episode 16
The Brotherhood
Jan 3, 2005
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.
Episode 17
Letters From Pegasus
Jan 10, 2005
Given a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones.
Episode 18
The Gift
Jan 17, 2005
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.
Episode 19
The Siege (1)
Jan 24, 2005
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.
Episode 20
The Siege (2)
Jan 31, 2005
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.