They are all future fighters of the special reconnaissance and sabotage brigade of the General Staff of the Workers' and Peasants' Red Army. And Ivan Zhukov, with the call sign Zhuk, now knows why grueling training and the ruthless demands of instructors who went through the Winter War and Khalkhin Gol were needed, why cadets need the ability to burrow into the ground and the possession of improvised means as weapons, as well as many others cunning skills. And the commander of their courses - yes, that’s the only way everyone calls the head of a special school - somehow knows what awaits them all and the country in the coming 1940s.