Linus and Lucy's younger brother Rerun likes to play with Snoopy. He has adventurous rides on the back of his mother's bike. The Van Pelt kids have a combative chemistry. Snoopy has a few brothers including Spike. "Happiness is a warm Puppy." Rerun would like a dog of his own. His mother refuses. Spike sends Snoopy a letter and in the return letter, Rerun proposes to take Spike in as his dog.
It has the charm of the Charlie Brown shows with the Van Pelts taking the lead from Charlie Brown. Rerun is actually funny and the Van Pelt kids are hilarious together. Essentially Rerun takes the lead from Charlie Brown except he's more assertive. He even says "Good Grief!" It's a charming special but it lacks a good Christmas message unless it's for the SPCA. Snoopy is funnier than ever and there is Spike in this one.