Low-budget US action feature starring Robert Bronzi. The film follows Hungarian Mick Kovack (Bronzi) as he travels to America to settle his late brother's debts. However, he finds himself wrongfully arrested and sent to the notorious Pleasant Hill Penitentiary where he agrees to work as a police informant. When he finally discovers the truth about his brother's death, Mick decides to plot his violent escape from the prison's death block 13.