Peppino delivers pizzas faster than anyone in Busytown, so when the kids wait an unusually long time for their pizza to arrive, they figure something must be wrong at the pizzeria. But Peppino isn't there and neither is his delivery car. By following his delivery route, the kids ultimately find Peppino stuck in an elevator. The Amazing Mouse Acrobats are in town. What's more amazing is that Hilda has found evidence of real live fairies in Busytown Woods. Putting the clues together, one by one, Huckle and his pals figure out that the "fairies" are really the mouse acrobats practicing their stunts.