In the fall of 2017, a fishing boat is sunken in the Gulf of Mexico by an unseen being. The following summer, 11-year old Johnathan "Jack" Duran and his freinds, Lisa Perkins, and Frank Tucker are planning to have the best summer of their lives, but are interrupted by local news reporter, Jim Marsh, who taunts them. Dr. Donna Duran , a marine biologist, determined to find her son, Tony Duran, she decides to collaborate with the .U.S. Military and go investigate the wreckage area in the Gulf. Back in Richmond, a giant reptile makes landfall and it's up to Jack, Lisa, Frank and Donna to stop it (and its babies).