Each year the population of sleepy Lake Victoria, Arizona explodes from 5,000 to 50,000 residents for the annual Spring Break celebration. But then, an earthquake opens an underwater chasm, releasing an enormous swarm of ancient Piranha that have been dormant for thousands of years, now with a taste for human flesh. This year, there's something more to worry about than the usual hangovers and complaints from locals, a new type of terror is about to be cut loose on Lake Victoria.

After the events at Lake Victoria, the prehistoric school of blood-thirsty piranhas make their way into swimming pools, plumbing, and a newly opened water park.

Paris-based wine expert Steven Spurrier heads to California in search of cheap wine that he can use for a blind taste test in the French capital. Stumbling upon the Napa Valley, the stuck-up Englishman is shocked to discover a winery turning out top-notch chardonnay. Determined to make a name for himself, he sets about getting the booze back to Paris.

Two teens are sent back in time to meet Martin Luther King Jr. at several points during his life.