On the thirteenth birthday of a boy named Jaromir, the world ends. The sun has gone out, and along with it, life on earth will soon fade away. People have long stopped caring about the planet, have forgotten how to live in harmony with nature and respect the elements. The world is plunged into darkness and panic. But Jaromir does not lose hope, and most importantly, he finds a way to enlist the support of the angry elements and the ancient gods in order to fix everything. He only has one day to do this. And to help only a mysterious medallion of unearthly origin, a friend-intellectual Pashka nicknamed Professor and a strange grandfather who is not really what he seems...