In the future, environmental disasters have left the planet flooded. A web-footed mutant mariner helps a woman and an orphan girl search for a mythical haven of dry land, with the help of a map tattooed on the child's back - but in the process has to fend off a villainous crew of nicotine-addicted pirates. Sci-fi adventure, starring Kevin Costner, Dennis Hopper, Jeanne Tripplehorn, Tina Majorino and Rick Aviles