Milo mopes in black ink sketches, until he assembles a tollbooth and drives through. He jumps to the island of Conclusions. But brothers King Azaz of Dictionopolis and the Mathemagician of Digitopolis war over words and numbers. Joined by ticking watchdog Tock and adult-size Humbug, Milo rescues the Princesses of Rhyme and Reason, and learns to enjoy life.