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Stargate Atlantis fanart Welcome to Stargate Atlantis at WatchOnlineFree.TV, a great website for those who love to watch Stargate Atlantis online for free. Here you can stream all episodes online without having to downloading any additional software on your computer. If you missed the latest Stargate Atlantis episode on TV, make sure to check our website to follow up on this series!


Latest episode, aired 5 years ago.

Enemy at the Gate
Episode 20
Air Date: Jan 9, 2009
Season: 5

Enemy at the Gate

The team learns that a rogue Wraith has acquired several Z.P.M.s to power a formidable new hive ship -- and he is headed for Earth.

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Vegas
Episode 19
Air Date: Jan 2, 2009
Season: 5

Vegas

In the city of Las Vegas, Detective John Sheppard must solve the case on a long string of unusual murders -- perpetrated by a Wraith in hidi…

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Identity
Episode 18
Air Date: Dec 12, 2008
Season: 5

Identity

Dr. Keller's body is taken over by a cunning thief, while Keller finds herself imprisoned with a death sentence on another planet.

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Infection
Episode 17
Air Date: Dec 5, 2008
Season: 5

Infection

After Todd's hive ship shows up over Atlantis transmitting a distress call, the team discovers that he and his crew have been stricken with …

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Brain Storm
Episode 16
Air Date: Nov 21, 2008
Season: 5

Brain Storm

Rodney returns to Earth with Jennifer to witness the triumph of his rival, who believes he has solved the problem of global warming. But whe…

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