When the postman mentions that Iggy's letter to Santa is being returned, Heathcliff is concerned that Santa may be retiring. There's only one thing to do. With Spike's help, Heathcliff mounts a north pole expedition. Polar Bears and arctic weather are only a few of the obstacles faced by Heathcliff and his dog sled...pulled, of course, by Spike. But their biggest problem comes in the form of a renegade elf who used to work at Santa's toy factory...