Echoes

Apr 20, 2007 on Syfy at 9:00 PM
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Watch Stargate Atlantis S03E12 online

Summary

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.

Previous episode

The Return (2)
Season 3 Episode 11

Apr 13, 2007

Next episode

Irresponsible
Season 3 Episode 13

Apr 27, 2007

Guest stars

Amanda Burke, Claire Rankin, David Neale, David Quinlan, Michael Chase, Patricia Nudd