The Race to the Top of the World comes around once in a lifetime. The prize? Your heart's desire. Shen and Sika can't resist the chance to win. The path to victory is littered with snow trolls, sea monsters, and a gang of particularly hungry yetis. But Shen and Sika have something the other contestants don't have: 66 pugs. That's a 264 paw-powered sled.