Synopsis: 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 ask for his help in finding out the truth about her mother's murder, who tries to throw Nadia away from the evidence pointing to him.
Watch Alias Season 4 Episode 4: Ice - Version 1
The video keeps buffering? Just pause it for 5-10 minutes then continue playing!
