Step right up! Junie B. Jones is heading to the school carnival, and she is determined to walk away a winner. It is Carnival Night at the school, and the gymnasium is packed with exciting games and amazing prizes. Junie B. has her heart set on winning something spectacular. But after a disastrous run at the Penny Toss and a totally unfair round at the Fishing Booth, she starts to panic that she might go home completely empty-handed. Finally, her luck changes when she wins the famous Cake Walk! Given the choice of any dessert on the table, Junie B. proudly selects the heaviest cake wrapped in shiny aluminum foil. She is certain it is the best prize of the night. But when she unwraps her glorious treasure, she discovers a horrifying truth: it is a solid, heavy, yucky blucky fruitcake! Now, she must figure out exactly what to do with the worst dessert in the world.