The team investigate the apparent suicide of an American in Colombia who emptied his bank account prior to his 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.