Wimpy eats "grow pills" and becomes a Paul Bunyon-like freak in a carnival. Brutus, the carnival owner, cannot make money on Wimpy -- he eats too many hamburgers. Brutus finally leaves Wimpy in Popeye's care. Popeye, with the help of Swee' Pea and Swee' Pea's chemistry set, invent a reducing pill to bring Wimpy back to normal.