Young autistic supermarket cashier, Matt Lambert, who has been living with his older sister, Kimberly(who he's very close with), their aunt, Mary, and their grandfather, Lawrence since the death of their parents in a plane crash two years ago, is recruited to go on a diving mission by marine biologist executive, Clarence Jackson. As soon as he arrives, he meets Clarence's tower operator, Augustus Roth, as well as a few more diving team members, the 's cook, Joe Vaughn, doctors, Jessica Cooper and John Lawson, his Scottish best friend from childhood who was also his nanny, Daphne Sullivan, wrangler, Brian Watkins, marine biologists, Alexis Fitzgerald and Emma Hughes, engineers, Tina McPherson, Nicole Benson, Jake Hawkins, and Evan Turner. But as soon as Matt and the other divers go on their diving mission, they find that not only Augustus betrayed them, but that a shark is in a cat-and-mouse game with them. Now it's up to Matt and the others to make it out of the sea.
