Mammy is tired of Tom being lazy and just lying around doing nothing. She receives a package that she's been wanting. It's a robot-cat. Tom first thinks it's just a robot, but when he sees how the cat got rid of Jerry, he feels sad and leaves. Every time Jerry tries to get back in the house, the robot throws him out. Jerry has a plan to keep the robot busy. He puts three wind-up mice in the house. The robot causes all kinds of destruction while trying to catch the mice. Mammy sees what a mess he made, and she begs Tom to come back.
