Sydney Bristow is a grad student by day, international spy by night. Her happiness over new new engagment is shortlived as she learns some horrible truths about who she works for.
Jack meets Ariana Kane head of Alliance counterintelligence who is investigating Emily's abduction and is blackmailing Sloane.
Vice President Mackenzie Allen unites the nation in the wake of the president's death, quelling her critics, who wanted her to resign to allow the Speaker of the House to succeed to the office.
Sydney and Vaughn must destroy a Rambaldi device in order to save Will's life; the Alliance comes to a decision regarding the fate of Emily Sloane (Amy Irving).
Marshall's life is put on the line after his mission with Sydney. Meanwhile Jack becomes the main suspect of Emily's disappearance.
