It's a Christmas Eve adventure to the North Pole when the Wonder Pets set out to rescue Santa's lost baby reindeer. The Wonder Pets fly to a child's bedroom to help a pet Goldfish, and then to Canada to help three Baby Birds. The Wonder Pets help a lost Baby Camel find his way back to the desert oasis, and then fly to a picnic to stop a fight between two groups of ants. Who's inside the egg that needs rescuing at Yellowstone National Park?