When two graduate student physicist run out of time to prove their theory on time travel, they enlist the help of film students to unearth and chronicle the experiments Nikola Tesla and other scientists were involved in with the US government, which involved testing LSD, electromagnetic energy and radiation on unsuspecting citizens. When members of the film crew end up missing, the physicists realize they may have gotten much more than what they bargained.

A freak hurricane hits Los Angeles, causing man-eating sharks to be scooped up in tornadoes and flooding the city with shark-infested seawater. Surfer and bar-owner Fin sets out with his friends Baz and Nova to rescue his estranged wife April and teenage daughter Claudia.

When the prehistoric warm-water beast the Crocosaurus crosses paths with that cold-water monster the Mega Shark, all hell breaks loose in the oceans as the world's top scientists explore every option to halt the aquatic frenzy. Swallowing everything in their paths -- including a submarine or two -- Croc and Mega lead an explorer and an oceanographer on a wild chase. Eventually, the desperate men turn to a volcano for aid.

A lone traveller joins a couple on a remote hike only to find out that one of them might be a murderer.