A fourteen-year-old boy from the city arrives on holiday to the forester Janusz, a former partisan and grandfather's friend from the war. He is greeted by strange people who initially create fear in him. When the next evening, "Rosomak" read aloud the book "Summer of The Forest People", the boy realizes that the lonely people he went to play before him the heroes of his favorite book, wanting to be like them. The boy happily accepts the continuation of the holiday fun. Under the guidance of a forester, he passes a kind of nature lesson - he controls the bird breeding sites on the lake, hunts the elk family, helps the beavers and deer, meets the bison and wild boars, fights with the poacher, goes through a forest fire, befriends a horse and... a girl named Justyna. Forest friends are fighting together to save the remnants of wild nature, to create a reserve in the old part of the forest. At the end, the boy has to pass the exam for a forest man: in three days and nights he should find the legendary "Odrowaz" in the wilderness. It turns out to be... his own grandfather, a former commander of a partisan unit fighting with the Nazis during World War II, who comes here every year to pay homage to the fallen on the anniversary of the last battle and his companions. The good time is over, the birds are flying away, the holidays are over... The series "Summer of The Forest People" was filmed in the oldest forest in Europe, in the Polish "Augustow Primeval Forest".
—Montago