Batman is away on a special assignment, leaving Robin the task of patrolling Gotham City. He befriends a tiny, costumed hero called Ant-Man whom he mistakenly suspects might be Batman. He later discovers that the Ant-Man is actually a mobster named Jumbo Carson and apprehends him. A criminal cartel known as the Gorilla Gang encounter Robin and abduct him. Batman is forced to come out of retirement to rescue him. The mission emboldens Batman's confidance and he stops having hallucinations.