Floating in deep space with the city’s protective shield failing, the team must do all they can to keep Atlantis alive. A radical injury threatens Dr. Weir’s life.

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…

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

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.

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

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

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

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.

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

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

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.

After a team from Atlantis goes missing, the expedition finds itself in the middle of a Genii coup.

An amnesiac young Lieutenant in Atlantis suffers from disturbing nightmares that he is a Wraith, only to make a shocking discovery about himself.

The Daedalus is infected by a Wraith computer virus, while members of the expedition hope to return to Earth.