Synopsis:
Sark has taken control of Irina's operations and Syd must go on a mission to hack into a camera system that can see through solid matter before it is launched into space. With information from Irina, Syd does the job and they track down a Rambaldi music device that contains a code for an energy system. She retrieves the code but is ambushed by Sark's men and falls under the ice. Also, Jack confronts Irina for the first time since he last saw her and Sloane deals with the death of his wife as eery events regarding Emily haunt his every move.
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