When eight-year-old Chris discovers a fluffy, white puppy wedged inside his family's chimney on Christmas morning, he knows exactly how it got there because the dog tells him. It turns out Peppermint Bark stowed away in Santa's sleigh, got left behind accidentally, and he can talk! Now Chris must convince his too-cool big sisters, Holly, and her best friend, Ivy, that this is Santa's puppy. Chris seems to be the only one who understands what the dog is saying, but Peppermint Bark needs all of their help. If they don't find a portal back to the North Pole before Christmas Day ends, the little dog will be stuck in Poinsettia until next year! Do the kids have enough Christmas spirit to work together and help the jolly little dog jingle all the way home?