A detachment of vigilantes on the way to the Kremlin meets a strange gray-haired man, dressed in dirty rags and armed with an old rusty sword. Suddenly it turns out that this is the vigilante Kazimir, whose detachment disappeared a long time ago not far from the Dome. Why did Kazimir show up only now? And where was he for so long? According to Kazimir, those responsible for the disappearance of the detachment are hiding in Mitino, and the young warrior Igor goes there, hoping to find his father, who was also in the missing detachment...