There is a prison called "Alcatraz" in San Francisco, USA, where cruel and brutal felons from all over the world are imprisoned. Despite the strongest walls and the most advanced monitoring system, the crisis of jailbreak and riots still looms over the prison. For the guards, every day's work means great pressure and danger. As long as there is a little spark, it may lead to an irreparable tragedy. Recently, the arrival of a "new friend" has attracted everyone's attention. However, everyone is more interested in where this friend hides the huge amount of gold he robbed. Sasha (Steven Seagal) is an FBI agent who was placed in the prison to track the movement of gold at all times. In a closed space full of criminals, a fierce battle is about to begin.