Years ago when the most dangerous prisoners of Alcatraz mysteriously disappeared, they resurface in the present day as part of a larger conspiracy, leaving a police detective, an expert on Alcatraz and an FBI agent to track them down.

When a sniper begins targeting young victims, the team is forced to retrace the steps of the past in order to solve this modern day mystery.

When Hauser, Madsen, and Soto track former inmate Paxton Petty, a landmine bomber who has returned and is placing bombs throughout populated areas of San Francisco, methods of the past are applied to the present.

Rebecca, Doc, and Hauser set out to capture musically-inclined serial killer Webb Porter, an unknown ’63 that returns more violent than ever.