A small town called Phoenixville in Pennsylvania is invaded by aliens. Or maybe alien singular, it's hard to tell. Because this hostile visitor is an amorphous mass of goo that must be jelly 'cos jam don't shake like that. It doesn't do too much leaping (unless you count the jerk-edit special effects), but it's very good at sliding across the floor, killing puny humans by absorbing them. Steve McQueen is Steve is the boy who leads a group of teens who foil its evil plan to turn Earth into a giant trifle.
