Researchers on the undersea laboratory Aquatica have genetically altered the brains of captive sharks to develop a potential cure for Alzheimer's disease. However, there is one noteworthy unexpected side effect--the sharks got smarter. Which could mean trouble for the researchers.

Jaws: When the seaside community of Amity finds itself under attack by a dangerous great white shark, the town's chief of police ..., a young marine biologist, and a grizzled shark hunter ... embark on a desperate quest to destroy the beast before it strikes again. 47 meters down: Two sisters vacationing in Mexico are trapped in a shark cage at the bottom of the ocean. With less than an hour of oxygen left and great white sharks circling nearby,...