In the future, crime is out of control and New York City's Manhattan is a maximum security prison. Grabbing a bargaining chip right out of the air, convicts bring down the President's plane in bad old Gotham. Gruff Snake Plissken, a one-eyed lone warrior new to prison life, is coerced into bringing the President, and his cargo, out of this land of undesirables.
In a futuristic world where the polar ice caps have melted and made Earth a liquid planet, a beautiful barmaid rescues a mutant seafarer from a floating island prison. They escape, along with her young charge, Enola, and sail off aboard his ship.