Clint Eastwood stars as Frank Morris in this tough depiction of life behind bars. Morris is a prisoner on the legendary Alcatraz island, a place where it is said that all attempts at escape are futile, but he refuses to believe the hype and together with a group of dedicated inmates, begins drawing up the plans which will eventually lead to the only successful escape attempt in the prison's history. After 'Coogan's Bluff', 'Two Mules for Sister Sara', 'Dirty Harry' and 'The Beguiled', this was Eastwood's fifth and final film for director Don Siegel.
