Four adolescents try to raise a British ship which sank in the Caribbean in 1665 with a cargo of gold on board. However, they cannot trust anyone not even themselves.
Four adolescents interning as research divers for the summer find themselves searching for a centuries-old treasure and fending off killer sharks. Interweaves their story with that of Samuel Higgins, a boy who died in a shipwreck in the same waters in 1665.
Diving interns Kaz, Dante, Adriana, and Star take desperate measures to reclaim the sunken treasure that has been stolen away from them by their supervisor Tad Cutter.