A popular amusement park becomes a chamber of horrors when a madman, hell-bent on destruction, triggers a series of rides to spin completely out of control. Fearing for the park's worth, owner Theresa Coulson does her best to keep the terrifying incidents out of the press. But the danger escalates to deadly proportions and suddenly the most popular ride in the park, the rollercoaster, becomes a ticking time bomb. Now, in the terrifying vein of Speed, it's up to one man to keep the ride moving, and get the passengers to safety, before it's too late.