When the Flood hits, America's east coast is evacuated by every means possible. Trains, buses, and an unending line of cars head inland. All manner of boats and ships aid in rescues along the docks of New York.

Brooklyn paramedic Travis Cooke had dreamed of reuniting his family, but not like this. Escaping New York with his son and the ex-wife he still loves-and her new husband-they find themselves evacuated on the luxury cruise ship, the Festival of the Waves.

Hours later, the Festival lies dead in the open Atlantic: no power, no communications, and nowhere near enough food. Thousands of evacuees on board find themselves alone in a big ocean. For those that escaped the Flood, the nightmare is just beginning.