An unprecedented series of violent tornadoes is sweeping across Oklahoma. Tornado chasers, headed by Dr. Jo Harding, attempt to release a groundbreaking device that will allow them to track them and create a more advanced warning system. They are joined by Jo's soon to be ex-husband Bill, a former tornado chaser himself, and his girlfriend Melissa.
When a young boy accidentally triggers the universe's most lethal hunters' return to Earth, only a ragtag crew of ex-soldiers and a disgruntled scientist can prevent the end of the human race.
Once an architect, Frank Bannister now passes himself off as an exorcist of evil spirits. To bolster his facade, he claims his "special" gift is the result of a car accident that killed his wife. But what he does not count on is more people dying in the small town where he lives. As he tries to piece together the supernatural mystery of these killings, he falls in love with the wife of one of the victims and deals with a crazy FBI agent.
