The Great Patriotic War. Two scouts, Georgian Vano and Kazakh Bakhytzhan, returning from a mission, fall under an air raid. Bakhytzhan saves Vano at the cost of his life. At the bedside of a dying comrade, Vano swears that their children will become related. However, Vano could not fulfill his promise, and now the grandchildren will have to fulfill the oath of their grandfathers. The grandchildren of Vano Buba and Nino leave Tbilisi for Almaty, unaware of the incredible adventures that await them in Kazakhstan.