Complete story — includes the ending
Michael Vaughn deals with Roberts to intercept a CIA shipment of a Rambaldi manual in exchange for information on whether Michael's father Bill Vaughn is still alive. To succeed, Michael is forced to shoot Dixon. Nadia reveals to Sydney that she's been secretly visiting Katya Derevko in prison. Confronted, Katya contradicts Jack; Irina did not contract an assassin to kill Sydney. She finds Irina's hidden message in a music box; a numbered bank account in Arvin Sloane's name. Marshall dupes Jack into signing medical authorization; testing positive for Nightingale mutations, Marshall confronts Jack about how it'll affects people who care about him, insisting he see a doctor. After mission success, Vaughn learns his father really is dead, and the journal was supposedly forged by Sloane. Jack reports to Sloane that Vaughn returned with the Nightingale coil, and that the CIA still possesses the Rambaldi manual. Dixon, protected by his vest, is recovering from being shot. In Santiago, an operative reports to a different Mr. Sloane that, "We haven't recovered the manuscript, and Roberts hasn't reported in."
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Alias season 4. HTML formatting and reference markers removed. · Content license