1. Ray Breslin is a security expert who tests prisons to find weaknesses. He takes a job to test a secret prison called "The Tomb", but is drugged and imprisoned with no way to prove his identity.
2. Breslin awakens in the prison, which is located inside a cargo ship. He works with inmates Rottmayer and Javed to study the guards and deduce their location.
3. Breslin, Rottmayer, and Javed stage a riot to escape to the deck. Javed is killed but Breslin and Rottmayer make it to a waiting helicopter arranged by Rottmayer, who was working with Breslin the