Johnny Dow struggles to make a living at his small town gas station by charging motorists to see the electric guitar used by his late father a one-hit, rock and roll wonder. Legend has it the guitar was carved in the shape of a dragon's head and made in part from an ancient spear his father found in the crater of a shooting star. When Johnny's friend Eddie stumbles upon the other half of the spear he releases an ancient demon hungry for power and destruction.