Joy Ride (2001)

It's summer break and college freshman Lewis Thomas has decided to embark on a cross-country road trip to pick up the girl of his dreams, Venna. But Lewis' romantic hopes hit a detour when he stops on the way to rescue his older brother, Fuller, who goads him into playing a practical joke on a lonely truck driver, over a CB radio. Now that trucker, an unseen and terrifying force known only by his CB handle, "Rusty Nail," wants the last laugh... and revenge.