A magic crystal makes it possible for Santa to multiply his efforts to distribute presents to children and thus bring happiness to families all over the world. But Santa´s evil twin brother Basil has a diabolic plan. He will steal the crystal and gain control over children´s minds. But thanks to the courage of a human boy, Yotan, the crystal is saved by Santa´s RED CAPS – his crew of elvish helpers. They succeed, after many adventures and crises, in saving the crystal and bringing it back to Santa´s headquarters in Korvatunturi.