Complete story — includes the ending
In Vienna, Sydney delivers drinks to Milos Kradic and Dixon. An unknown operative with glasses triggers explosives, intercepting Hydrosek delivery. Sydney fights glasses-guy, who escapes. Dixon shoots Kradic, preventing Hydrosek release into drinking water pipes. Glasses-guy reports failure to Elena. Jack disappears; Sydney and Vaughn find he's been self-medicating alkylating agents for radiation remediation. Nadia gives Marshall an artist's sketch of glasses-guy, unaware Sophia-Elena bugged her pendant. Jack visits Dr. Liddell with more alkylating agent obtained from Anthony. Learning Jack's condition from Marshall, Sydney and Vaughn track him down; seems Jack was hallucinating Liddell. Glasses-guy hacks Nadia's laptop for the Hydrosek file. At the hospital, Jack thinks Sydney is his wife. Sloane suggests Sydney take another alias, Laura, to discover where Jack relocated radiation therapy specialist Dr. Atticus Liddell in 1981. A set is dressed, recreating Jack's 1981 home, and a child actress portrays young Sydney. To "Laura," Jack reveals he'll relocate Liddell to Finland, and quit to be home with Sydney, who's more important than his CIA job. Sydney brings Liddell from Helsinki to APO to treat Jack. Elena has the Hydrosek relocated off-site through Nadia's logon. She kills glasses-guy, escaping with the weapon.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Alias season 4. HTML formatting and reference markers removed. · Content license