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The Best Episodes of Stargate Atlantis Season 4

Every episode of Stargate Atlantis Season 4 ranked from best to worst. Discover the Best Episodes of Stargate Atlantis Season 4!

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.

Genres:Sci-Fi & FantasyAction & AdventureDrama
Network:Syfy

Season 4 Ratings Summary

The best episode of "Stargate Atlantis" season 4 is "Adrift (2)", rated 8.5/10 from 1109 user votes. It was directed by Martin Wood and written by Martin Gero. "Adrift (2)" aired on 9/27/2007 and is rated 0.0 point(s) higher than the second highest rated, "Lifeline (3)".

  • Adrift (2)
    8.5/10 1,109 votes

    #1 - Adrift (2)

    Season 4 Episode 1 - Aired 9/27/2007

    Floating in deep space with the city's protective shield failing, the team must do all they can to keep Atlantis alive. A radical injury threatens Dr. Weir's life.

    Director: Martin Wood

    Writer: Martin Gero

  • Lifeline (3)
    8.5/10 992 votes

    #2 - Lifeline (3)

    Season 4 Episode 2 - Aired 10/4/2007

    Colonel Sheppard and his team embark on a risky mission to steal a Z.P.M. power module from the Replicators -- but must rely on a compromised Dr. Weir to succeed.

    Director: Martin Wood, Andy Mikita

    Writer: Carl Binder

  • Reunion
    7.5/10 957 votes

    #3 - Reunion

    Season 4 Episode 3 - Aired 10/11/2007

    When a group of Ronon's people enlist the team's help in raiding a Wraith weapons facility, Ronon reconsiders whether his future lies in Atlantis or with his friends.

    Director: William Waring

    Writer: Paul Mullie, Joseph Mallozzi

  • Doppelganger
    7.1/10 932 votes

    #4 - Doppelganger

    Season 4 Episode 4 - Aired 10/18/2007

    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

  • Travelers
    7.7/10 1,016 votes

    #5 - Travelers

    Season 4 Episode 5 - Aired 10/25/2007

    Colonel Sheppard is captured by the inhabitants of a generational ship and their beautiful leader, who wish to use his ability to use Ancient technology for their own ends.

    Director: William Waring

    Writer: Paul Mullie, Joseph Mallozzi

  • Tabula Rasa
    8.0/10 981 votes

    #6 - Tabula Rasa

    Season 4 Episode 6 - Aired 11/1/2007

    When a virus causes amnesia in everyone except Teyla and Ronon, the Atlantis team must work together to find a cure before their memories fade entirely.

    Director: Martin Wood

    Writer: Alan McCullough

  • Missing
    7.1/10 943 votes

    #7 - Missing

    Season 4 Episode 7 - Aired 11/8/2007

    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

  • The Seer
    7.8/10 930 votes

    #8 - The Seer

    Season 4 Episode 8 - Aired 11/15/2007

    The team meets a man with extraordinary prophetic abilities, who gives them a dark prediction about Atlantis's future. The Wraith seek a new alliance with Atlantis in their war with the Replicators.

    Director: Andy Mikita

    Writer: Alan McCullough

  • Miller's Crossing
    7.7/10 967 votes

    #9 - Miller's Crossing

    Season 4 Episode 9 - Aired 11/29/2007

    Rodney McKay goes in search of his sister on Earth after she is kidnapped by the head of a powerful corporation.

    Director: Andy Mikita

    Writer: Martin Gero

  • This Mortal Coil (1)
    8.0/10 918 votes

    #10 - This Mortal Coil (1)

    Season 4 Episode 10 - Aired 12/6/2007

    A mysterious drone crashes into Atlantis, indicating that the Replicators may have found the city. But when Elizabeth Weir appears, the team realizes that the probe is just a part of a bigger mystery.

    Director: William Waring

    Writer: Brad Wright, Paul Mullie, Joseph Mallozzi

  • Be All My Sins Remember'd (2)
    9.0/10 1,249 votes

    #11 - Be All My Sins Remember'd (2)

    Season 4 Episode 11 - Aired 1/3/2008

    With a plan to potentially extinguish the Replicator threat, the Atlantis team must seek an alliance with a fleet of Wraith ships.

    Director: Andy Mikita

    Writer: Martin Gero

  • Spoils of War
    8.0/10 889 votes

    #12 - Spoils of War

    Season 4 Episode 12 - Aired 1/10/2008

    The team finds their former Wraith ally's hive ship drifting in space, which leads them to a secret project that could turn the tide of a civil war.

    Director: William Waring

    Writer: Alan McCullough

  • Quarantine
    7.4/10 909 votes

    #13 - Quarantine

    Season 4 Episode 13 - Aired 1/17/2008

    An automated lockdown traps Atlantis personnel in various parts of the city, each of them hoping the others will come to their rescue.

    Director: Martin Wood, Andy Mikita

    Writer: Carl Binder

  • Harmony
    7.2/10 1,013 votes

    #14 - Harmony

    Season 4 Episode 14 - Aired 1/24/2008

    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

  • Outcast
    7.3/10 904 votes

    #15 - Outcast

    Season 4 Episode 15 - Aired 1/31/2008

    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

  • Trio
    7.4/10 951 votes

    #16 - Trio

    Season 4 Episode 16 - Aired 2/7/2008

    McKay, Carter, and Keller are trapped in an underground chamber while on an off-world mission, with no apparent means of escape.

    Director: Martin Wood

    Writer: Martin Gero

  • Midway
    8.9/10 1,168 votes

    #17 - Midway

    Season 4 Episode 17 - Aired 2/14/2008

    Teal'c visits Atlantis to counsel a headstrong Ronon, who is up for review by the I.O.A. But the two must work together when the Wraith invade the Midway space station in order to reach Earth.

    Director: Andy Mikita

    Writer: Carl Binder

  • The Kindred (1)
    7.7/10 870 votes

    #18 - The Kindred (1)

    Season 4 Episode 18 - Aired 2/21/2008

    As a mysterious new illness sweeps through the Pegasus Galaxy, Teyla is convinced by a vision that the father of her child is trying to communicate with her.

    Director: Peter F. Woeste

    Writer: Paul Mullie, Joseph Mallozzi

  • The Kindred (2)
    7.9/10 867 votes

    #19 - The Kindred (2)

    Season 4 Episode 19 - Aired 2/28/2008

    The team is shocked when an old friend, believed to be dead, miraculously returns to them. Teyla plans an escape from Michael's captivity.

    Director: Martin Wood

    Writer: Alan McCullough

  • The Last Man (1)
    8.8/10 1,138 votes

    #20 - The Last Man (1)

    Season 4 Episode 20 - Aired 3/6/2008

    Sheppard returns to Atlantis after a mission and finds the city abandoned, all systems dead -- and instead of ocean, sand dunes as far as the eye can see.

    Director: Martin Wood

    Writer: Paul Mullie, Joseph Mallozzi