A nine-year-old Elizabeth Taylor made her film debut in this lively comedy. She plays the spoiled-brat daughter of a pudding manufacturer who has been entered into the town's mayoral race by some of the local businessmen. They have chosen him because they think he is easy to manipulate. As a sales gimmick, the pudding magnate advertises that his product contains the highly nutritious "Vitamin Z." He suddenly begins selling pudding like crazy and soon his political campaign is well-funded. Unfortunately, there is no "Vitamin Z" and when this is discovered, the town fathers try to dump him and show that he is a fake.

Businesswoman Sophie Throckmorton plans to sell the Jellystone Lodge, devastating the regular guests – including Huckleberry Hound, Augie Doggie and Doggie Daddy, and Snagglepuss – and it's up to Ranger Smith, manager Mr. Dingwell, and the newly awake Yogi, Boo Boo and Cindy keep the Christmas spirit alive amidst the mischievous attempts of two villains to ruin the fun.