A police chief in the war-torn streets of Los Angeles discovers that an extraterrestrial creature is hunting down residents - and that he is the next target.
Researchers on the undersea lab Aquatica have genetically altered the brains of captive sharks to develop a cure for Alzheimer's disease. But there's an unexpected side effect: the sharks got smarter, faster, and more dangerous. After a big storm damages their remote research facility, they must fight for their lives.
When rogue stealth-fighter pilot Vic Deakins deliberately drops off the radar while on maneuvers, the Air Force ends up with two stolen nuclear warheads -- and Deakins's co-pilot, Riley Hale, is the military's only hope for getting them back. Traversing the deserted canyons of Utah, Hale teams with park ranger Terry Carmichael to put Deakins back in his box.
