Air date - Fri 16th of July 2004
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.
Air date - Fri 16th of July 2004
Sheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith.
Air date - Fri 23rd of July 2004
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.
Air date - Fri 30th of July 2004
The team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate.
Air date - Fri 6th of August 2004
After a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst.
Air date - Fri 13th of August 2004
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.
Air date - Fri 20th of August 2004
The team finds a world whose people are on the brink of a discovery that may make them immune to the Wraith feeding.
Air date - Fri 27th of August 2004
Efforts to open trade relations with a species called the Genii turn sour when the team discovers their new "allies" have ulterior motives.
Air date - Fri 10th of September 2004
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.
Air date - Fri 17th of September 2004
When a massive storm threatens the city, Atlantis is evacuated -- only to be taken over by the team's newest enemy.
Air date - Fri 21st of January 2005
Major Sheppard plays a dangerous game of cat and mouse with soldiers who have seized control of Atlantis and taken Weir and McKay hostage.
Air date - Fri 28th of January 2005
Sheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor.
Air date - Fri 4th of February 2005
Nearly a third of Atlantis's residents are infected with a deadly virus that causes hallucinations and death, forcing a lockdown of the city.
Air date - Fri 11th of February 2005
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.
Air date - Fri 18th of February 2005
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.
Air date - Fri 25th of February 2005
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.
Air date - Fri 4th of March 2005
With a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones.
Air date - Fri 11th of March 2005
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.
Air date - Fri 18th of March 2005
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.
Air date - Fri 25th of March 2005
A new military contingent from Earth is sent to take command of Atlantis and defend it from the impending Wraith attack.