"Principal Krupp once again turns into the superhero Captain Underpants in order to save the world, and Jerome Horwitz Elementary School, from the evil talking toilets and the Turbo Toilet 2000"-cProvided by publisher.
Excited to board the Titanic with his aunt and little sister, ten-year-old George begins to explore the ill-fated ship's first-class storage cabin when the ship is rocked by a collision with an iceberg and begins to sink.