An intrusion incident occurs throughout Brooms Town. Peter puts trap around the house for catching the thieves. That night, Peter comes out to catch the invader who has invaded the house but he falls into his own trap. Eventually, the rescue team goes and finds an intruder, but the identity of the intruder is a cute baby cat. Polly tells Peter how to prevent a house invasion. Peter makes a mess in the living room by chasing the cat and he gets a scolding from his mom.