Complete story — includes the ending
Sydney is grateful and proud of her father after he saves her life while on a case in Havana but her admiration is short lived when Vaughn discovers further evidence that Jack may have been responsible for the deaths of over a dozen CIA officers 25 years earlier, one of them his own father. After thinking it over carefully, Sydney decides to speak against her father in front of senior CIA agents. But she is surprised to see him at the meeting, where he himself tells her that yes, he was involved but he was not the assassin. She's shocked to learn that Laura Bristow, her mother, was in fact one Irina Derevko, undercover agent for the KGB, who infiltrated the US to obtain intelligence and murder key agents.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Alias season 1. HTML formatting and reference markers removed. · Content license