Alias

Sydney comes face to face with her mother, who has something sinister in store for her daughter, Sydney hunts for Vaughn, not knowing if he is dead or alive, and Dixon debates informing Sloane of Sydney's suspicious behavior.

Sydney must decide whether to accept her mother's goodwill gesture at face value, Will spots Francie talking to a questionable individual, and Sloane is made a full partner in the Alliance of Twelve.

Sydney must outwit her enemy, Sark, to find a crucial bit of intelligence, Jack faces Sydney's mum for the first time in nearly 20 years, Will meets Vaughn at last, and Sloane is haunted by his wife's death.

Jack takes drastic measures to protect Sydney from her mother, a mysterious woman confronts Will about resurrecting his story on SD-6, and Dixon's revelations about the origins of a suspicious phone call prove disconcerting for Sloane.

Sydney uncovers a terrifying secret when she's sent on a mission to track down a new generation of weapons, and Vaughn worries that Jack might be setting up Sydney's mother to take a fall.

Jack makes a great sacrifice in order to regain his daughter's fading trust. Sydney and Vaughn may have been exposed to a deadly virus in Taiwan, and Sloane begins to unravel.