As Dr. Marcus Andrews vows to help a good Samaritan who was injured while stopping a sexual assault, Dr. Audrey Lim faces a difficult decision when a young patient’s parents…

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

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.

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.

The Daedalus arrives to defend Atlantis from the Wraith onslaught, but it may not be enough when the team discovers that an even larger armada is on the way.

A run-in with a Wraith Dart leaves the consciousness of a precocious Atlantis security officer trapped in Dr. McKay’s mind.