Our man in the alternative Middle Ages, where almost all of Europe and Russia are conquered by the Arabs, and the last Christian enclaves die one after another under the blows of Muslims. Posing as the missing commander of the Order of the Cross, an alien from the 21st century must revive the dying knighthood and lead the Reconquista. No mysticism! No weapons from the future! "Popadanets" can only count on their own strength!