Alexandra D'Artagnan, junior member of NSA uncovers a conspiracy that the goal is to assassinate the American president. Alexandra has secured the support of three famous and notorious international spies in order to stop the assassination.

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.