Stargate Atlantis backdrop
Sci-Fi & Fantasy•Action & Adventure•Drama

The Best Episodes of Stargate Atlantis Season 3

Every episode of Stargate Atlantis Season 3 ranked from best to worst. Discover the Best Episodes of Stargate Atlantis Season 3!

Binge this in 14h 10m•Peaking at 8.7/10

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

Airs on
Syfy
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons5

All12345

Episode Rankings

  1. #1 Fan Favorite
    Stargate Atlantis Season 3 Episode 7 - Common Ground
    8.7/10(1385 votes)

    S3:E7

    Colonel Sheppard finds himself the prisoner of a Genii commander, along with a desperately hungry Wraith who has been separated from his hive.

    Director:William Waring
    Writer:Ken Cuperus

    Be the first to start the conversation for this episode

  2. Stargate Atlantis Season 3 Episode 11 - The Return (2)
    8.6/10(1209 votes)

    S3:E11

    The Atlantis team goes against orders to try and save Atlantis from Replicator control -- and to rescue General O'Neill and Richard Woolsey, who are trapped in the occupied city.

    Director:Brad Turner
    Writer:Martin Gero

    Be the first to start the conversation for this episode

  3. Stargate Atlantis Season 3 Episode 20 - First Strike (1)
    8.6/10(1166 votes)

    S3:E20

    An unstoppable energy weapon leaves Atlantis under siege after Earth launches a preemptive attack against a very powerful enemy's homeworld.

    Director:Martin Wood
    Writer:Martin Gero

    Be the first to start the conversation for this episode

  4. Stargate Atlantis Season 3 Episode 8 - McKay and Mrs. Miller
    8.5/10(1339 votes)

    S3:E8

    Rodney McKay is reunited with his estranged sister back on Earth, who has given up a brilliant career as a scientist to raise a family.

    Director:Martin Wood
    Writers:Martin Gero, Carl Binder

    Be the first to start the conversation for this episode

  5. Stargate Atlantis Season 3 Episode 1 - No Man's Land (2)
    8.3/10(1207 votes)

    S3:E1

    The team desperately attempts to stop two Wraith hive ships from reaching Earth. Sheppard must rely on an old foe to rescue McKay and Ronon.

    Director:Martin Wood
    Writer:Martin Gero

    Be the first to start the conversation for this episode

  6. Stargate Atlantis Season 3 Episode 14 - Tao of Rodney
    8.3/10(1297 votes)

    S3:E14

    After an Ancient device gives Rodney superhuman powers, his enhanced brilliance is checked only by his impending death -- unless he can learn how to ascend.

    Director:Martin Wood
    Writer:Damian Kindler

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 BEST Episodes of Stargate Atlantis

    READ
  7. Stargate Atlantis Season 3 Episode 17 - Sunday
    8.3/10(1420 votes)

    S3:E17

    The team tries to relax during a mandatory day off, until an explosion leaves three people dead -- and reveals that one scientist is a walking time bomb.

    Director:William Waring
    Writer:Martin Gero

    Be the first to start the conversation for this episode

  8. Stargate Atlantis Season 3 Episode 4 - Sateda
    8.2/10(1276 votes)

    S3:E4

    Ronon Dex is captured by the Wraith and returned to his homeworld, where he is haunted by his past as he is forced to once again become their prey.

    Director:Robert C. Cooper
    Writer:Robert C. Cooper

    Be the first to start the conversation for this episode

  9. Stargate Atlantis Season 3 Episode 10 - The Return (1)
    8.2/10(1156 votes)

    S3:E10

    The Atlantis expedition is stunned to learn that a ship full of Ancients is returning to reclaim their lost city.

    Director:Brad Turner
    Writer:Martin Gero

    Be the first to start the conversation for this episode

  10. Stargate Atlantis Season 3 Episode 5 - Progeny
    8.1/10(1156 votes)

    S3:E5

    Weir and the team visit an advanced civilization that split off from the Lanteans thousands of years ago, but discover that they may not have left Atlantis in peace.

    Director:Andy Mikita
    Writer:Carl Binder

    Be the first to start the conversation for this episode

  11. Stargate Atlantis Season 3 Episode 15 - The Game
    7.8/10(1232 votes)

    S3:E15

    Sheppard and McKay discover that their competitive video game has been controlling a planet of real people, who now stand on the brink of war.

    Director:William Waring
    Writers:Carl Binder, Holly Henderson, Don Whitehead

    Be the first to start the conversation for this episode

  12. Stargate Atlantis Season 3 Episode 12 - Echoes
    7.7/10(1116 votes)

    S3:E12

    The inhabitants of Atlantis begin to suffer ill effects when the planet's whale population begins migrating to the island city, bringing an unexpected harbinger of doom.

    Director:William Waring
    Writers:Carl Binder, Brad Wright

    Be the first to start the conversation for this episode

  13. Stargate Atlantis Season 3 Episode 18 - Submersion
    7.4/10(1073 votes)

    S3:E18

    The team discovers an Ancient drilling station deep beneath the surface of the ocean, only to find that a Wraith queen is still alive there.

    Director:Brenton Spencer
    Writer:Ken Cuperus

    Be the first to start the conversation for this episode

  14. Stargate Atlantis Season 3 Episode 19 - Vengeance
    7.4/10(1051 votes)

    S3:E19

    The Atlantis team investigates the disappearance of one of their allies, only to find an old enemy engineering a race of powerful monsters.

    Director:Andy Mikita
    Writer:Carl Binder

    Be the first to start the conversation for this episode

  15. Stargate Atlantis Season 3 Episode 2 - Misbegotten (3)
    7.3/10(1121 votes)

    S3:E2

    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
    Writers:Joseph Mallozzi, Paul Mullie

    Be the first to start the conversation for this episode

  16. Stargate Atlantis Season 3 Episode 16 - The Ark
    7.3/10(1072 votes)

    S3:E16

    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
    Writers:Carl Binder, Scott Nimerfro, Ken Cuperus

    Be the first to start the conversation for this episode

  17. Stargate Atlantis Season 3 Episode 9 - Phantoms
    7.0/10(1084 votes)

    S3:E9

    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

    Be the first to start the conversation for this episode

  18. Stargate Atlantis Season 3 Episode 6 - The Real World
    6.8/10(1186 votes)

    S3:E6

    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.

    Directors:Paul Ziller, Jule Gilfillan
    Writer:Carl Binder

    Be the first to start the conversation for this episode

  19. Stargate Atlantis Season 3 Episode 3 - Irresistible
    6.6/10(1288 votes)

    S3:E3

    Sheppard's team meets an obnoxious man who is adored by all thanks to a secret that he carries -- and who has an unexpected effect on them.

    Director:Martin Wood
    Writer:Carl Binder

    Be the first to start the conversation for this episode

  20. Stargate Atlantis Season 3 Episode 13 - Irresponsible
    6.6/10(1163 votes)

    S3:E13

    The team finds Lucius Lavin manipulating the people of another hapless planet, using Ancient technology to pose as an invincible hero.

    Director:Martin Wood
    Writers:Joseph Mallozzi, Paul Mullie

    Be the first to start the conversation for this episode

Season 3 Ratings Summary

"Common Ground" is the best rated episode of "Stargate Atlantis" season 3. It scored 8.7/10 based on 1385 votes. Directed by William Waring and written by Ken Cuperus, it aired on 8/24/2006. This episode is rated 0.1 points higher than the second-best, "The Return (2)".