Alias - Ice

Seizoen: 4 - Aflevering: 4 / 70 - Eerst uitgezonden: 19 januari 2005 - Episode ID: 8952

Sydney and Vaughn go undercover to track down a deadly new bio-weapon. Meanwhile, Sydney is concerned about Vaughn not having yet put Lauren behind, and Nadia turns to a Jack to find out the truth about her mother.