They came with a lightning strike and are now walking across Rus' with thunderous steps! Who are these five menacing young men in black clothes? Demons? Gods? The roar of guitars spills across the fields, drums shake the earth, words caress and tear at the soul when the Perkūnas group plays their songs! What are they doing here? They do not know. How did they get here? They do not know. Where to go? Where can I get food? How to stop getting into dangerous and idiotic situations? How would they know, they are musicians, not survival specialists! One thing is clear: the land of Rus', several years before the baptism, was saturated with ancient power. She will show the way or lead to death. Will their friendship survive when every dawn brings new adventures, and every turn can become fatal?