During the summer, Santa takes time to inspect his reindeer. One of his top reindeer, Kringle, announces his retirement, revealing that his grandson, Kuppi, has been following in his hooves. Kuppi dreams of pulling Santa's sleigh on Christmas Eve, but to earn his place, he must compete in a reindeer race during winter. The first ten reindeer to cross the finish line will earn the honor of leading Santa's sleigh on Christmas night.