A teenage girl - Newt, is stranded out in the ocean in a Jon Boat, an ocean that is infested by sharks. Unknown to Newt there is something far more dangerous than sharks, something down deep below on the ocean bed that is following her.

A teenage girl (Newt) is in a Jon boat out in the ocean, an ocean that is infested by sharks. Newt is in search of a barge that is supposed to have her family on it. Unknown to Newt there is something far more dangerous than sharks down deep below on the ocean bed that is following her.