Anne-Marie Martin

At a high school senior prom, a masked killer stalks four teenagers who were responsible for the accidental death of a classmate six years prior.

TV weatherman Bill (Bill Paxton) is trying to get his tornado-hunter wife, Jo (Helen Hunt), to sign divorce papers so he can marry his girlfriend. But Mother Nature, in the form of a series of intense storms sweeping across Oklahoma, has other plans. Soon the three of them have joined a team of stormchasers as they attempt to insert a revolutionary measuring device into the very heart of several extremely violent tornados.