Struggle as he might, Underdog cannot escape the rubber trap, and he eventually exhausts himself trying. Overcat arrives to check on Underdog inside the trap. He pulls out the weakened superhero. His footcats take him to the barn with Polly. Underdog is too weak to break the chains. Polly cries that they will have to spend the rest of their lives milking cows. Underdog reminds Polly about his energy pill. She feeds it to him. They break free. Underdog tells Polly to free the cows while he fights the Felina army. He makes short work of the cats, and helps Polly herd the cows into the rocket trains. Overcat finds his men in a heap. He decides to challenge Underdog to a fight. The winner gets the Earth's milk. Underdog receives a telegram with Overcat's challenge. In it, the tyrant threatens to attack the Earth is Underdog refuses to fight. Will he accept the challenge?