Tom gets Spike sent to obedience school for being naughty, and Jerry is left without a protector. When Spike returns, Tom tries hard to get Spike to revert to his old ways. Jerry fights back to make sure that Spike keeps his cool.

Dr. Bigby upgrades his robot to be “The future of home security,” but when Tom invades the lab to pursue Jerry and Napoleon, the robot has some tricks up its sleeves which will lead the robot into hysteria.

While celebrating the holidays with Beatie and Hildie, Tom and Jerry destroy their Christmas tree and must go out to obtain a new one. In the process, they help out Santa Claus by delivering presents for Christmas.

When Tom and Jerry go camping in Yosemite, Jerry appears to be having fun, but Tom is not. He tries to have as much fun as Jerry has, but ends up attracting a bear.