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tlantis has responded to a distress call of the planet Taranis. They are living in a compound that was created by the Ancients. Chancellor Lycus decided one year ago to put the shield up since the news of Wraith attacks broke out, but now the shield generator is giving trouble. While McKay tries to repair it with the help of Taranian engineer Norina, several earthquakes shake the city. He finds out there's something really wrong. Meanwhile Lycus is giving Sheppard, Teyla and Ronon a tour of the facility. He shows them a hangar, inside is an Ancient warship. Sheppard and Weir think forming an alliance might be the best way to get their hands on it.

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