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 worst episode of "Stargate Atlantis" is "Inquisition", rated 6/10 from 909 user votes. It was directed by Brenton Spencer and written by Alex Levine. "Inquisition" aired on 10/19/2008 and is rated 0.6 point(s) lower than the second lowest rated, "Irresponsible".
Lt. Colonel John Sheppard's team is invited by the Coalition of Planets in order to form an alliance. However, the team is misled and is faced to stand trial, for their alleged crimes against the Pegasus galaxy. Their best chance of freedom, is the experiences of Richard Woolsey.
Director: Brenton Spencer
Writer: Alex Levine
The team finds Lucius Lavin manipulating the people of another hapless planet, using Ancient technology to pose as an invincible hero.
Director: Martin Wood
Writer: Paul Mullie, Joseph Mallozzi
Sheppard's team meets an obnoxious man who is adored by all thanks to a secret that he carries -- and who has an unexpected affect on them.
Director: Martin Wood
Writer: Carl Binder
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.
Director: Andy Mikita
Writer: Damian Kindler
Elizabeth Weir wakes up in a mental institution, where she is told that the expedition to Atlantis and the Stargate are figments of her imagination.
Director: Jule Gilfillan, Paul Ziller
Writer: Carl Binder
Sheppard and Ronon are influenced by a mind-altering device created by the Wraith while on a mission to rescue a lost team.
Director: Martin Wood
Writer: Carl Binder
The team finds themselves in mortal danger when their Puddle Jumper ship becomes lodged in the Stargate.
Director: Mario Philip Azzopardi
Writer: Brad Wright
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.
Director: Andy Mikita
Writer: Paul Mullie, Joseph Mallozzi
During an off-world mission Colonel Sheppard unknowingly becomes host to an alien entity, which infects others in Atlantis and afflicts them with terrifying nightmares.
Director: Robert C. Cooper
Writer: Robert C. Cooper
During a visit to New Athos, Teyla and Dr. Keller find themselves on the run from a primitive tribe of warriors.
Director: Andy Mikita
Writer: Carl Binder
Ronon Dex is captured by Tyre, who wants to hand him to the Wraith in order to maintain his role in their circle. However, when the deal turns sour, and Tyre is left for dead, the Atlantis expedition persuade him to take back their friend. Meanwhile, The Wraith turn Ronon into a Wraith worshipper.
Director: Ken Girotti
Writer: Paul Mullie, Joseph Mallozzi
Dr. Carson Beckett, now a traveling doctor in Pegasus comes across a planet, where some of the villagers are refugees from Balar, a planet infected with the Hoffan drug, and destroyed by the Wraith. However, the Wraith arrive on the planet and gives the village an ultimatum, hand over the Balarians, or face destruction of the entire civilization.
Director: William Waring
Writer: Alan McCullough
Dr. Jennifer Keller's body is inadvertently taken over by a cunning thief, Neeva Casol. While Neeva tries to escape Atlantis, Keller finds herself imprisoned with a death sentence on another planet, forcing the team into a race against time to return Keller to her original body before she is put to death.
Director: William Waring
Writer: Carl Binder
After a series of run-ins with the Wraith, the team begins to suspect their Athosian allies of having a spy in their midst.
Director: Mario Philip Azzopardi
Writer: Paul Mullie, Joseph Mallozzi
With a brief opportunity to send a data transmission to Earth, members of the Atlantis expedition compose video messages home to their loved ones.
Director: Mario Philip Azzopardi
Writer: Carl Binder
Colonel Sheppard and Dr. McKay must protect a child princess on a pilgrimage before she can become queen, and learn that she has dangerous enemies threatening her life.
Director: William Waring
Writer: Martin Gero
When a mysterious alien organism takes Dr. Jennifer Keller as its host, the newly revived Dr. Carson Beckett and the crew desperately search for a serum to save her from the evolving intruder before it can infiltrate Atlantis. In the meantime, Richard Woolsey officially joins the team, having been chosen as Colonel Samantha Carter's replacement to lead the Atlantis expedition.
Director: William Waring
Writer: Paul Mullie, Joseph Mallozzi
Sheppard's team investigates a downed Wraith ship, and find themselves stuck on a planet with a lone Wraith survivor.
Director: Peter DeLuise
Writer: Peter DeLuise
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.
Director: Peter DeLuise
Writer: Carl Binder, Sean Carley
The Atlantis team must decide the fate of a colony of Wraith they have turned into humans. Dr. Weir must defend her leadership when she is evaluated by the I.O.A.
Director: Martin Wood
Writer: Paul Mullie, Joseph Mallozzi
The team discovers the last of a civilization in suspended animation, whose survival is at risk when their station is critically damaged.
Director: Martin Wood
Writer: Carl Binder, Ken Cuperus, Scott Nimerfro
While on personal leave on Earth, Sheppard and Ronon learn that scientists have engineered a human-form Replicator -- who is now on the loose.
Director: Andy Mikita
Writer: Carl Binder, Joe Flanigan
Dr. Carson Beckett is called in to help a team investigating a lab that once belonged to Michael Kenmore. But soon, they realize that a group of experiments that even Michael couldn't control are hellbent on killing the team.
Director: William Waring
Writer: Paul Mullie, Joseph Mallozzi
Sheppard tries to convince Weir to mount a rescue mission to free Colonel Sumner, Teyla, and the others captured by the Wraith.
Director: Martin Wood
Writer: Robert C. Cooper, Brad Wright
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.
Director: David Winning
Writer: Martin Gero