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Stargate Atlantis: Season 1

20 episodes Premiered Jul 15, 2004 Updated Jul 20, 2026

Stargate Atlantis is a science fiction television series that premiered in 2004. The narrative follows an expedition team organized by Stargate Command that travels to the Pegasus Galaxy. Led by Dr. Elizabeth Weir and Major Sheppard, the team successfully discovers the lost city of Atlantis, which was originally constructed by the Ancients. Upon their arrival at the ancient abandoned site, the expedition members find

Season overview

Stargate Atlantis is a science fiction television series that premiered in 2004. The narrative follows an expedition team organized by Stargate Command that travels to the Pegasus Galaxy. Led by Dr. Elizabeth Weir and Major Sheppard, the team successfully discovers the lost city of Atlantis, which was originally constructed by the Ancients. Upon their arrival at the ancient abandoned site, the expedition members find themselves unable to establish contact with Earth. Their initial explorations of the city lead to the unexpected reawakening of the Ancients' defenses. As the team settles into their new environment, they encounter a powerful adversary known as the Wraith. Throughout the first season, the expedition must navigate various challenges to protect their new home while simultaneously exploring the galaxy and attempting to secure new allies. The series, which is categorized under the genres of sci-fi, fantasy, action, adventure, and drama, chronicles the team's efforts to survive and operate within this remote region of space. The show ran from 2004 until 2009.

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Episodes

S1·E1

Rising (1)

Jul 15, 2004 · 45 min

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.

S1·E2

Rising (2)

Jul 15, 2004 · 41 min

Sheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith.

S1·E3

Hide and Seek

Jul 23, 2004 · 44 min

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.

S1·E4

Thirty Eight Minutes

Jul 30, 2004 · 44 min

The team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate.

S1·E5

Suspicion

Aug 6, 2004 · 48 min

After a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst.

S1·E6

Childhood's End

Aug 13, 2004 · 44 min

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.

S1·E7

Poisoning the Well

Aug 20, 2004 · 42 min

The team finds a world whose people are on the brink of a discovery that may make them immune to the Wraith feeding.

S1·E8

Underground

Aug 27, 2004 · 44 min

Efforts to open trade relations with a species called the Genii turn sour when the team discovers their new "allies" have ulterior motives.

S1·E9

Home

Sep 10, 2004 · 42 min

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.

S1·E10

The Storm (1)

Sep 17, 2004 · 42 min

When a massive storm threatens the city, Atlantis is evacuated, only to be taken over by the team's newest enemy.

S1·E11

The Eye (2)

Nov 8, 2004 · 42 min

Major Sheppard plays a dangerous game of cat and mouse with soldiers who have seized control of Atlantis and taken Weir and McKay hostage.

S1·E12

The Defiant One

Nov 15, 2004 · 42 min

Sheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor.

S1·E13

Hot Zone

Nov 22, 2004 · 42 min

Nearly a third of Atlantis's residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city.

S1·E14

Sanctuary

Nov 29, 2004 · 44 min

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.

S1·E15

Before I Sleep

Dec 6, 2004 · 42 min

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.

S1·E16

The Brotherhood

Jan 3, 2005 · 44 min

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.

S1·E17

Letters From Pegasus

Jan 10, 2005 · 44 min

Given a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones.

S1·E18

The Gift

Jan 17, 2005 · 42 min

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.

S1·E19

The Siege (1)

Jan 24, 2005 · 44 min

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'

S1·E20

The Siege (2)

Jan 31, 2005 · 44 min

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.