It's Christmas time again! Lucy and Linus's younger brother Rerun really wants a dog of his own. He can't have Snoopy, so he asks Snoopy's brother Spike to come stay. They have a great time, but Rerun's mom thinks dogs are too much trouble! When Spike goes home to the desert, will Rerun's Christmas be ruined?

Adapted from the works of Charles M. Schulz. "Based on the television special produced by Lee Mendleson and Bill Melendez."