Flee Alcatraz - Three Convicts Escape Rock The spoon proves mightier than the bars at supposedly escape proof Alcatraz prison as three bank robbers, serving long terms, fashion dummies for their beds and go AWOL after scratching through the cement walls of their cells. Whatever their fate, they seem to have accomplished what many others have failed to do. Exterior shots of prison. Sign - 'Warning Keep Off - Only Government boats permitted within 200 yards.' Photos of wanted posters of prisoners. Coast guard boat. Sailor looking through binoculars. Helicopter flying. Alcatraz Prison seen from boat.