In the last moments of World War II, a secret Nazi space program evaded destruction by fleeing to the Dark Side of the Moon. During 70 years of utter secrecy, the Nazis construct a gigantic space fortress with a massive armada of flying saucers.

Hundreds of years ago in Lapland, a little boy named Nikolas loses his family in an accident. The villagers decide to look after the orphaned boy together. Once a year - at Christmas - Nikolas moves to a new home. To show his gratitude, Nikolas decides to make toys for the children of the families as good-bye presents. Over the years, Nikolas's former adoptive families become many, and soon almost every house has presents on its doorstep on Christmas morning. At thirteen, Nikolas is sent to live and work with Iisakki, a grumpy old carpenter, who forbids Nikolas to continue making presents for Christmas. Gradually, however, Nikolas wins Iisakki's trust. Together they begin to look after the Christmas traditional that Nikolas has begun. When the aged Iisakki has to leave Nikolas and move away, the tradition of Christmas presents is once again at risk. Thankfully, Nikolas comes up with a solution that brings children joy every Christmas, even continuing to today.