Tom Sawyer, Huck Finn and Becky Thatcher stow away with Mark Twain on his magical airship and take an incredible journey through time in search of Halley's Comet! Along the way they encounter a variety of Twain's storybook characters from The Diary of Adam and Eve, Huckleberry Finn, The Mysterious Stranger, The Famous Jumping Frog of Caliverous County, and Captain Stormfield's Visit to Heaven, with an exciting climax at the end.