The summer holidays are approaching and the children are bragging about all the exciting places they are going to visit during the long-awaited two months of summer. Only Tonda is not looking forward to staying in Prague over the holidays. He brightens up after his father announces that the boy can visit some friends of the family in the village of Petipas.

The short story film follows the fate of three young men who will soon have to decide what to do with their lives. The first "Poet", an aspiring author, publishes his first poem, while the sporting career of the second "Rep", a national table tennis player, is disrupted by a maths repartee. The last "Beaver Grizzly" is a tramp more used to solitude, yet he starts a pioneer troop...

The ten-year-old orphan Borisek is fathered by the entire military unit. The boy serves there with determination as a medic. When he and the soldiers reach Bohemia, he meets the mother of the soldier he saw die, but for a long time he does not find the courage to tell her the cruel truth...