S3·E20 First Strike (1)
Core
Aired February 4, 2007
Synopsis
An unstoppable energy weapon leaves Atlantis under siege after Earth launches a preemptive attack against a very powerful enemy's homeworld.
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Frequently Asked Questions
When did Season 3 Episode 20 of Stargate Atlantis air?
Season 3, Episode 20 ('First Strike (1)') originally aired on February 4, 2007.
How long is Season 3 Episode 20 ('First Strike (1)')?
The episode follows the standard broadcast runtime for Stargate Atlantis.
What happens in Stargate Atlantis Season 3 Episode 20?
An unstoppable energy weapon leaves Atlantis under siege after Earth launches a preemptive attack against a very powerful enemy's homeworld....