Tom is happy with his new Aunt Bundlejoy Cosysweet who is delighted to be asked to join him in his latest invention, a jam-powered frog. When the frog hops past Captain Najork’s window Tom does not expect to be chased by a pedal powered snake, complete with the Captain and his hired sportsmen, bent on revenge. As Tom, the Captain and Aunt Fidget Wonkham-Strong Najork all converge on a nearby girls’ boarding school, the tables are suddenly turned with the Captain finding himself in a very precarious situation. . .