The adventures of ten cadets of the Ryazan Airborne School in the 13th century, where they ended up miraculously, continue. They managed to withstand the princely pressure and coped with the Mongol attempts to destroy their city, built with great difficulty. By developing and training the local population, attracted by the human attitude towards workers, the cadets are building a new society with a republican form of government, attracting more and more new comrades to their side. They see their main task as teaching the population to read and write, building a classless society and a strong army that could withstand any enemy. They have already stood firmly on their feet and are forcing themselves to be respected.