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.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Rising, Part 1 | 2004-07-16 | 60 min |
| Season 1 | Episode 2 | Rising, Part 2 | 2004-07-16 | 60 min |
| Season 1 | Episode 3 | Hide and Seek | 2004-07-23 | 60 min |
| Season 1 | Episode 4 | Thirty-Eight Minutes | 2004-07-30 | 60 min |
| Season 1 | Episode 5 | Suspicion | 2004-08-06 | 60 min |
| Season 1 | Episode 6 | Childhood's End | 2004-08-13 | 60 min |
| Season 1 | Episode 7 | Poisoning the Well | 2004-08-20 | 60 min |
| Season 1 | Episode 8 | Underground | 2004-08-27 | 60 min |
| Season 1 | Episode 9 | Home | 2004-09-10 | 60 min |
| Season 1 | Episode 10 | The Storm | 2004-09-17 | 60 min |
| Season 1 | Episode 11 | The Eye | 2005-01-21 | 60 min |
| Season 1 | Episode 12 | The Defiant One | 2005-01-28 | 60 min |
| Season 1 | Episode 13 | Hot Zone | 2005-02-04 | 60 min |
| Season 1 | Episode 14 | Sanctuary | 2005-02-11 | 60 min |
| Season 1 | Episode 15 | Before I Sleep | 2005-02-18 | 60 min |
| Season 1 | Episode 16 | The Brotherhood | 2005-02-25 | 60 min |
| Season 1 | Episode 17 | Letters from Pegasus | 2005-03-04 | 60 min |
| Season 1 | Episode 18 | The Gift | 2005-03-11 | 60 min |
| Season 1 | Episode 19 | The Siege, Part 1 | 2005-03-18 | 60 min |
| Season 1 | Episode 20 | The Siege, Part 2 | 2005-03-25 | 60 min |
| Season 2 | Episode 1 | The Siege, Part 3 | 2005-07-15 | 60 min |
| Season 2 | Episode 2 | The Intruder | 2005-07-22 | 60 min |
| Season 2 | Episode 3 | Runner | 2005-07-29 | 60 min |
| Season 2 | Episode 4 | Duet | 2005-08-05 | 60 min |
| Season 2 | Episode 5 | Condemned | 2005-08-12 | 60 min |
| Season 2 | Episode 6 | Trinity | 2005-08-19 | 60 min |
| Season 2 | Episode 7 | Instinct | 2005-08-26 | 60 min |
| Season 2 | Episode 8 | Conversion | 2005-09-09 | 60 min |
| Season 2 | Episode 9 | Aurora | 2005-09-23 | 60 min |
| Season 2 | Episode 10 | The Lost Boys | 2005-09-23 | 60 min |
| Season 2 | Episode 11 | The Hive | 2006-01-06 | 60 min |
| Season 2 | Episode 12 | Epiphany | 2006-01-13 | 60 min |
| Season 2 | Episode 13 | Critical Mass | 2006-01-20 | 60 min |
| Season 2 | Episode 14 | Grace Under Pressure | 2006-01-27 | 60 min |
| Season 2 | Episode 15 | The Tower | 2006-02-03 | 60 min |
| Season 2 | Episode 16 | The Long Goodbye | 2006-02-10 | 60 min |
| Season 2 | Episode 17 | Coup d'Etat | 2006-02-17 | 60 min |
| Season 2 | Episode 18 | Michael | 2006-02-24 | 60 min |
| Season 2 | Episode 19 | Inferno | 2006-03-03 | 60 min |
| Season 2 | Episode 20 | Allies | 2006-03-10 | 60 min |
| Season 3 | Episode 1 | No Man's Land | 2006-07-14 | 60 min |
| Season 3 | Episode 2 | Misbegotten | 2006-07-21 | 60 min |
| Season 3 | Episode 3 | Irresistible | 2006-07-28 | 60 min |
| Season 3 | Episode 4 | Sateda | 2006-08-04 | 60 min |
| Season 3 | Episode 5 | Progeny | 2006-08-11 | 60 min |
| Season 3 | Episode 6 | The Real World | 2006-08-18 | 60 min |
| Season 3 | Episode 7 | Common Ground | 2006-08-25 | 60 min |
| Season 3 | Episode 8 | McKay and Mrs. Miller | 2006-09-08 | 60 min |
| Season 3 | Episode 9 | Phantoms | 2006-09-15 | 60 min |
| Season 3 | Episode 10 | The Return, Part 1 | 2006-09-22 | 60 min |
| Season 3 | Episode 11 | The Return, Part 2 | 2007-04-13 | 60 min |
| Season 3 | Episode 12 | Echoes | 2007-04-20 | 60 min |
| Season 3 | Episode 13 | Irresponsible | 2007-04-27 | 60 min |
| Season 3 | Episode 14 | Tao of Rodney | 2007-05-04 | 60 min |
| Season 3 | Episode 15 | The Game | 2007-05-11 | 60 min |
| Season 3 | Episode 16 | The Ark | 2007-05-18 | 60 min |
| Season 3 | Episode 17 | Sunday | 2007-06-01 | 60 min |
| Season 3 | Episode 18 | Submersion | 2007-06-08 | 60 min |
| Season 3 | Episode 19 | Vengeance | 2007-06-15 | 60 min |
| Season 3 | Episode 20 | First Strike | 2007-06-22 | 60 min |
| Season 4 | Episode 1 | Adrift | 2007-09-28 | 60 min |
| Season 4 | Episode 2 | Lifeline | 2007-10-05 | 60 min |
| Season 4 | Episode 3 | Reunion | 2007-10-12 | 60 min |
| Season 4 | Episode 4 | Doppelganger | 2007-10-19 | 60 min |
| Season 4 | Episode 5 | Travelers | 2007-10-26 | 60 min |
| Season 4 | Episode 6 | Tabula Rasa | 2007-11-02 | 60 min |
| Season 4 | Episode 7 | Missing | 2007-11-09 | 60 min |
| Season 4 | Episode 8 | The Seer | 2007-11-16 | 60 min |
| Season 4 | Episode 9 | Miller's Crossing | 2007-11-30 | 60 min |
| Season 4 | Episode 10 | This Mortal Coil | 2007-12-07 | 60 min |
| Season 4 | Episode 11 | Be All My Sins Remember'd | 2008-01-04 | 60 min |
| Season 4 | Episode 12 | Spoils of War | 2008-01-11 | 60 min |
| Season 4 | Episode 13 | Quarantine | 2008-01-18 | 60 min |
| Season 4 | Episode 14 | Harmony | 2008-01-25 | 60 min |
| Season 4 | Episode 15 | Outcast | 2008-02-01 | 60 min |
| Season 4 | Episode 16 | Trio | 2008-02-08 | 60 min |
| Season 4 | Episode 17 | Midway | 2008-02-15 | 60 min |
| Season 4 | Episode 18 | The Kindred, Part 1 | 2008-02-22 | 60 min |
| Season 4 | Episode 19 | The Kindred, Part 2 | 2008-02-29 | 60 min |
| Season 4 | Episode 20 | The Last Man | 2008-03-07 | 60 min |
| Season 5 | Episode 1 | Search and Rescue | 2008-07-11 | 60 min |
| Season 5 | Episode 2 | The Seed | 2008-07-18 | 60 min |
| Season 5 | Episode 3 | Broken Ties | 2008-07-25 | 60 min |
| Season 5 | Episode 4 | The Daedalus Variations | 2008-08-01 | 60 min |
| Season 5 | Episode 5 | Ghost in the Machine | 2008-08-15 | 60 min |
| Season 5 | Episode 6 | The Shrine | 2008-08-22 | 60 min |
| Season 5 | Episode 7 | Whispers | 2008-09-05 | 60 min |
| Season 5 | Episode 8 | The Queen | 2008-09-12 | 60 min |
| Season 5 | Episode 9 | Tracker | 2008-09-19 | 60 min |
| Season 5 | Episode 10 | First Contact | 2008-09-26 | 60 min |
| Season 5 | Episode 11 | The Lost Tribe | 2008-10-10 | 60 min |
| Season 5 | Episode 12 | Outsiders | 2008-10-17 | 60 min |
| Season 5 | Episode 13 | Inquisition | 2008-10-24 | 60 min |
| Season 5 | Episode 14 | The Prodigal | 2008-11-07 | 60 min |
| Season 5 | Episode 15 | Remnants | 2008-11-14 | 60 min |
| Season 5 | Episode 16 | Brain Storm | 2008-11-21 | 60 min |
| Season 5 | Episode 17 | Infection | 2008-12-05 | 60 min |
| Season 5 | Episode 18 | Identity | 2008-12-12 | 60 min |
| Season 5 | Episode 19 | Vegas | 2009-01-02 | 60 min |
| Season 5 | Episode 20 | Enemy at the Gate | 2009-01-09 | 60 min |
| Art | Chris Beach | Art Direction |
| Crew | James Bamford | Stunt Coordinator |
| Production | Paul Mullie | Producer |
| Production | Martin Wood | Producer |
| Production | Brad Wright | Executive Producer |
| Production | Robert C. Cooper | Producer |
| Production | Peter DeLuise | Producer |
| Production | Joseph Mallozzi | Producer |
| Production | Martin Gero | Producer |
| Production | Carl Binder | Producer |
| Production | Mario Philip Azzopardi | Producer |
