Twelve year-old Timothy Tinsdale is a pirate fanatic, right down to his bedroom, which is an exact replica of a pirate ship. Timothy and best friends, Buster and Flab, are easy targets for school bully, Dirk Waters, and his bully brigade. On the night of his thirteenth birthday, Timothy sees an image in the mirror. And t his image, but that of Petrucchio, a pirate from long ago. Petrucchio enlists the boys' help in traveling back in time to find a special tri-cornered hat, one that has mysteriously disappeared from Timothy's room. Problem is they aren't the only ones looking for it. Shamus T. McAnders, captain of the Devil's Reach, and life long adversary of Petrucchio, is also in hot pursuit and has kidnapped Waters and company to help. Through a series of adventures on the high seas, many humorous, the kids quickly learn what they are made of...or t.