Ray Breslin is a former prosecutor who co-owns Breslin-Clark, a Los Angeles–based security firm specializing in testing the reliability of Supermax prison prisons. He spends his life getting into prisons to study their designs and the guards' habits to find and exploit their weaknesses, thus enabling him to escape without a hitch or a victim. His goal is to ensure that criminals sent to prison stay inside by eliminating the weakness of every prison; Breslin's wife and child were murdered by an escaped convict he had successfully prosecuted.
Years after he fought his way out of an inescapable prison, Ray Breslin has organized a new top-notch security force. But when one of his team members goes missing, Breslin must return to the hell he once escaped from.y.
In this installment, the daughter of a Hong Kong tech executive goes missing in what appears to be a routine ransom job. As Breslin (Stallone) and his crew delve deeper, they discover the culprit is the deranged son of his former business partner, who also kidnapped the woman in Breslin's life, and is holding her inside the massive prison known as Devil’s Station.