Complete story — includes the ending
Four vials filled with the deadly Ebola virus are stolen by a group of freelance criminals. One of them, security expert Laszlo Bogdan, is infected; he is caught, but dies. Sydney is assigned to infiltrate the gang posing as a security expert for their next job. In Seville, she meets the gang's leader, Simon Walker, who calls her Julia. As a test of her skills, Sydney is asked to steal a 150-carat diamond necklace at a formal soiree just as Simon alerts the police, leaving only moments for her to prove herself. Sark appears at the pre-heist meeting in Pamplona and nearly recognizes Sydney. The heist is successful but Vaughn is captured by the gang. To stop Simon from shooting and killing Vaughn, Sydney stabs him instead, pushing him down the roadside embankment, with the intent to take him to the hospital later, thus maintaining her cover under Simon. Meanwhile, Jack takes matters into his own hands to protect his daughter, purposely revealing Sydney's deadly secret to Dixon in order to preserve her position inside the CIA.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Alias season 3. HTML formatting and reference markers removed. · Content license