A new gate will open. A lost city will rise again.
With the Ancients' city of Atlantis discovered in the Pegasus Galaxy by Stargate Command, Dr. Elizabeth Weir and Major Sheppard lead a scientific expedition to the ancient abandoned city. Once there, the team not only find themselves unable to contact Earth, but their explorations unexpectedly reawaken the Ancients' deadly enemies, The Wraith, who hunger for this new prey. Now with the help of newfound local allies like Teyla Emmagan, the Atlantis Team sets about to uncover their new home's secrets even as their war of survival against the Wraith begins.
The Siege (3) (Episode 1) 8.5
Writer: Martin Gero
Air date: 2005-07-15
Runtime: 42 min
Overview: 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.
The Intruder (Episode 2) 7.3
Writer: Paul Mullie
Air date: 2005-07-22
Runtime: 44 min
Overview: The Daedalus is infected by a Wraith computer virus, while members of the expedition hope to return to Earth.
Runner (Episode 3) 7.8
Writer: Robert C. Cooper
Air date: 2005-07-29
Runtime: 42 min
Overview: Sheppard and his team attempt to locate Lieutenant Ford, only to find themselves captives of a former soldier who is being hunted by the Wraith.
Duet (Episode 4) 8.2
Writer: Martin Gero
Air date: 2005-08-05
Runtime: 42 min
Overview: A run-in with a Wraith Dart leaves the consciousness of a precocious Atlantis security officer trapped in Dr. McKay's mind.
Condemned (Episode 5) 7.7
Writer: Sean Carley
Air date: 2005-08-12
Runtime: 42 min
Overview: The Atlantis team finds a culture that lives in relative safety from the Wraith, because they hand over their criminals to the Wraith -- and crash-land in the volatile penal colony.
Trinity (Episode 6) 7.8
Writer: Damian Kindler
Air date: 2005-08-19
Runtime: 44 min
Overview: McKay puts the team at risk when he tries to perfect unfinished Ancient technology that wiped out a civilization. Ronon Dex discovers that he is not the lone survivor from his world.
Instinct (Episode 7) 7.5
Writer: Treena Hancock
Air date: 2005-08-26
Runtime: 44 min
Overview: The team discovers a young Wraith girl who has been raised by a human, and is in hiding from the people of her human village in fear of her life.
Conversion (Episode 8) 7.4
Writer: Martin Gero
Air date: 2005-09-09
Runtime: 42 min
Overview: Colonel Sheppard begins to undergo a disturbing physical transformation after being exposed to Beckett's anti-Wraith drug.
Aurora (Episode 9) 8.2
Writer: Brad Wright
Air date: 2005-09-23
Runtime: 44 min
Overview: When the team finds an Ancient warship adrift on the edge of the galaxy, its crew still alive, Colonel Sheppard enters their virtual reality stasis to communicate with them.
The Lost Boys (1) (Episode 10) 7.4
Writer: Martin Gero
Air date: 2005-09-23
Runtime: 44 min
Overview: The team is captured by the missing Lieutenant Ford, who is now leading a group of young men who are taking the Wraith enzyme -- and who wants the team's help in a suicide attack against a hive ship.
The Hive (2) (Episode 11) 7.7
Writer: Carl Binder
Air date: 2005-11-16
Runtime: 44 min
Overview: Colonel Sheppard and his team find themselves prisoners of the Wraith following Ford's attack on a hive ship. Dr. McKay goes to great lengths to help them.
Epiphany (Episode 12) 7.8
Writer: Joe Flanigan
Air date: 2005-11-28
Runtime: 44 min
Overview: Sheppard finds himself on a planet where time passes more rapidly, with no way to contact his team or return to Atlantis.
Critical Mass (Episode 13) 7.7
Writer: Carl Binder
Air date: 2005-12-05
Runtime: 44 min
Overview: When an operative of the Trust plants a bomb in Atlantis, the team must find a spy within their own ranks before the Wraith arrive and discover the city.
Grace Under Pressure (Episode 14) 7.5
Writer: Martin Gero
Air date: 2005-12-10
Runtime: 44 min
Overview: When Dr. McKay is trapped underwater in a sinking Puddle Jumper, his only chance for survival may be an hallucination of Samantha Carter.
The Tower (Episode 15) 7.5
Writer: Paul Mullie
Air date: 2005-12-19
Runtime: 44 min
Overview: The team finds a world that possesses Ancient defense technology, where Colonel Sheppard finds himself a pawn in the rivalry between the heirs to the throne.
The Long Goodbye (Episode 16) 7.3
Writer: Damian Kindler
Air date: 2006-01-02
Runtime: 44 min
Overview: The team discovers two pods that contain the minds of alien beings, who take control of Weir and Sheppard's bodies to continue their personal war.
Coup D'etat (Episode 17) 7.8
Writer: Martin Gero
Air date: 2006-01-09
Runtime: 44 min
Overview: After a team from Atlantis goes missing, the expedition finds itself in the middle of a Genii coup.
Michael (Episode 18) 7.9
Writer: Carl Binder
Air date: 2006-01-16
Runtime: 44 min
Overview: An amnesiac young Lieutenant in Atlantis suffers from disturbing nightmares that he is a Wraith, only to make a shocking discovery about himself.
Inferno (Episode 19) 8.0
Writer: Carl Binder
Air date: 2006-01-23
Runtime: 44 min
Overview: Sheppard's team meets a civilization about to be destroyed by a super-volcano, and is trapped there when the Stargate is destroyed during the evacuation.
Allies (1) (Episode 20) 8.2
Writer: Martin Gero
Air date: 2006-01-30
Runtime: 44 min
Overview: Michael and his Wraith faction arrive at Atlantis to propose an alliance, hoping to use the retrovirus to transform their Wraith enemies into prey.
