Barry Mahon made exploitation, sexploitation, and even kiddie films. Here’s his "lost" rock movie, a lunatic time capsule from a long gone era, with a plot of such staggering simplicity that it’s almost complex: the ghost of a pirate casually strolls out of the ocean and declares war on a local amusement park in Florida, and all the kids want part in the mutiny. Local bands and Iron Butterfly perform at the park.