The Last Castle

A respected three-star tactician whose career ends in disgrace when he's court-martialed, General Irwin, is sent to The Castle, a maximum security military prison. While incarcerated, Irwin butts heads with the facility's warden, Colonel Winter, who runs his command with an iron fist, killing prisoners when he deems it necessary. Irwin rallies his fellow convicts and leads them in a riot against Winter, an action that is met with violent means.