The film is about the Ukrainian paramilitary organization of the early 20th century – "Free Cossacks." 

The Free Cossacks were Ukrainian voluntary armed formations that emerged during the disintegration of the imperial army in the spring of 1917, with the aim of creating and defending a Ukrainian state amid the growing revolution, when the issue of public order became acute in the towns and villages of Ukraine. The formation of the Free Cossacks began in April 1917 in the Zvenyhorodka district of Kyiv region.

The series is based on the comedy YouTube project Volunteers About Volunteers.

The protagonists are Ukrainian women and men who never get tired of donating, closing fundraisers, buying, bringing, sending, who know who to call and where to go to get everything the superheroes need in pixels from the ground. These are married couples, old friends, and new acquaintances who are united by a great common cause - volunteering. They manage not only to help, but also to joke, fall in love, work things out and support each other through the twists and turns of life.

Volunteers | Volunteers 2

According to the story by George Vladimov.

After Stalin's death, the disbanding of the camp system begins. A security sergeant from Vologodsky receives an order from his superiors to shoot his convoy shepherd Ruslan, as she is no longer needed. The military brings the dog into the forest and already brings up the gun, but at the last moment the pity wins, and he chases the animal. The dog obeys the command humbly, thinking that for some reason he has blamed and lost his master's love. In the following days he returns to the camp every morning, but cannot find a sergeant there. One day in the nearby village of Ruslan, he can still feel his footprint. He finds the owner at the train station buffet, where he drinks with a former prisoner. After noticing his dog, the sergeant takes too much of his muzzle, thus severely offending Ruslan. He then gives the dog a slice of bread, but he refuses. In case of non-fulfillment of the command, the sergeant gets annoyed with the difficult life and alcohol, spreads a piece with a thick layer of mustard and stuffs the dog in the mouth. Later, an amnesty buffet prisoner finds Ruslan on the street and takes him to his ...