Fifty years ago in Port Emmett, a bridge collapsed during a hurricane, plunging a train carrying a circus into the dark depths of the bay. Attempts to recover the train carriage carrying the clowns were unsuccessful and the hurricane simply washed silt and mud over it, making any future recovery attempts impossible. The people of the town decided to forget about it and leave the clowns in their burial ground in the bay. But now with another hurricane approaching, the clowns are back to extract their revenge upon the descendants of those who left them.