Stargate Atlantis

S1E1

Episode 1

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.

S1E2

Episode 2

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

S1E3

Episode 3

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.

S1E4

Episode 4

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

S1E5

Episode 5

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

S1E6

Episode 6

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.

S1E7

Episode 7

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

S1E8

Episode 8

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

S1E9

Episode 9

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.

S1E10

Episode 10

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

S1E11

Episode 11

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

S1E12

Episode 12

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

S1E13

Episode 13

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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Episode 14

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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Episode 15

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.

S1E16

Episode 16

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.

S1E17

Episode 17

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

S1E18

Episode 18

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.

S1E19

Episode 19

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.

S1E20

Episode 20

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.