Passage, Part 1
The Bristows share a twisted Thanksgiving in the first half of an action-packed two-parter.
With Sark (Derrick O'Connor) now on staff at SD-6, Irina (Lena Olin) grows increasingly uneasy about her ex-ally's motives. And her instinct is confirmed when Sark provides a band of rebels with the activation codes to six stolen nuclear weapons. Armed with intel on the group's locale, Irina barters for a release from CIA custody to help a reluctant Jack and Sydney (Victor Garber, Jennifer Garner) pose as a family on holiday in Pakistan, where one false move could blow their cover. Back home, Will has huge news for Vaughn (Michael Vartan) about Project Christmas.