Troubled times have come for Holy Europe - a state that arose on the ruins of the modern world, almost completely destroyed by the cruel Stone Rain. The motorized squads of the Scandinavian king Thorvald Gringson, nicknamed Crow's Claw, land on the northern European coast and fight their way south to the Eternal City. Torvald is sure that the ruler of Holy Europe, the Prophet, has secretly found an ancient shrine that once belonged to the ancient gods of the North - the horn of Gjallakhorn, which has great power. In order to take possession of a precious artifact, the king is ready to crush the impregnable walls of the Divine Citadel at any cost. Erik Henrikson, a former hunter of the Order of the Inquisition, and now an outcast, hiding from the wrath of the Prophet in Russia, finds himself in a fire-ridden Europe, having agreed to carry out a secret order from the Prince of St. Petersburg. However, the assignment turns out to be mortally dangerous, and returning back will not be so easy.