1. Ray Breslin is a security expert who gets himself captured and sent to a secret maximum security prison at sea to test its escape-proof design.
2. While in the prison, Breslin works with fellow inmate Emil Rottmayer to deduce they are being held on a cargo ship. They develop an escape plan.
3. After a fight instigated as a distraction, Breslin, Rottmayer, and another inmate make their way to the deck during a lockdown and escape by helicopter.