Grandads-Robbers is a 1972 Soviet comedy-drama by Eldar Ryazanov, filmed on Mosfilm. Movie title resembles the name of a Russian children's traditional yard game Cossacks-Robbers.
Old detective Nikolay Myachikov is being retired by his boss Fedyaev. The official version is that Myachikov solved no crimes during last two months. But the real reason is that Fedyaev's boss wants Myachikov's position to go to another man, Proskudin.