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In the first episode of a two-part story, Sydney's perennial nemesis Sark (David Anders) has ostensibly mended his ways and joined the staff of SD-6. Sark's former confederate Irina (Lena Olin) suspects that he is up to no good -- and she turns out to be right on target when Sark delivers the highly volatile Uzbek communication codes into the hands of insurgents. Inasmuch as these codes have the capability of activating half a dozen nuclear warheads, Irina is in a position to negotiate a 48-hour release from CIA custody so that she, her daughter, Sydney (Jennifer Garner), and her ex-husband, Jack (Victor Garber), can head to Pakistan in the guise of vacation tourists. Upon arrival, this "happy family" begins to track down the codes, their efforts compromised by Syd and Jack's inability to thoroughly trust Irina. Meanwhile back in the U.S.A., Will (Bradley Cooper) is astonished by the CIA's indifference to his findings concerning Project Christmas.