Detectives Tom and Jerry are hired by Polly the Dog to get back her collar from mean Barkley at the park. After a series of incidents involving the pound “jail” and an electric fence, Barkley reforms when he meets Polly and falls in love with her.

An asteroid is heading towards earth and Tom and Jerry are determined to stop it; Napoleon is hungry for vending machine food.

Little Quacker enlists Jerry’s help in getting his cracked favorite birdbath fixed, but they get distracted by the smell of Tom’s delicious Chinese takeout. After fighting over the food, Tom steals Little Quacker’s fortune cookie and gets the kind of fortune he deserves.

The witch sisters both commemorate the passing of their mother and Tom tries to help out by bringing her back from the grave.