Sydney discovers a terrifying secret when she's sent on a case to track down a new generation of weapons. Meanwhile, Vaughn suspects Jack of setting up Sydney's mother to take a fall. Sloane tells Jack the truth about Emily's death.

Amy Aquino, Dan Istrate, Daniel Faraldo, James Lesure, Kevin Sutherland, Kevin West, Loren Hayes, Newell Alexander, Sarah K. Peterson, Stephen Markle, Vladimir Skomarovsky