The famous Black Pig, home to Captain Pugwash and his crew is in desperate need of a spring clean. But what begins as a simple exercise in painting and decorating soon leads to a plot so dastardly that it looks as if the Captain's days are numbered. Luckily, young Tom, the cabin boy, has a brainwave. And so Pugwash, the most famous pirate of all, survives yet again to sail the Seven Seas.