The series of children's films about Detective Martin, who intervenes in cases involving children, begins with this film. It consists of two short stories: in the first ("Three Bottles"), the young hero, escaping from an orphanage, gets involved in a robbery of postage stamps..., in the second ("Flying Carousel"), the children fight a dishonest owner of fairground rides...

Children's detective stories were very successful in the 1960s, and the stories of Martin the criminal even had several sequels. In this film, Martin investigates a mysterious ancient crime in a castle where today the guide mentions this fact only as a curiosity. He is led to this by a broken display case on which he finds a child's handprints. And in a seemingly mundane red slide, easily mistaken for a rare diamond, he finds an important clue...

A film about a young schoolgirl and her two loves: figure skating and music. Because she can't properly divide her energy and time between studying, sports and piano, she has setbacks. She is about to give up on one of her loves, but her teacher gives her courage and shows her by her example how to manage her energy and time properly.

The second installment of children's stories investigator Dr. Martin. The film has two stories:

Two stories from the lives of border guards. In the story "The Pursuit", an experienced border guard and his young and inexperienced colleague follow the tracks of ski boots in a snowstorm. The second story, Wandering, is about a frontiersman whose wife wants to go inland with their child.

Two stories from the lives of border guards. In the story "The Pursuit", an experienced border guard and his young and inexperienced colleague follow the tracks of ski boots in a snowstorm. The second story, Wandering, is about a frontiersman whose wife wants to go inland with their child.

Five years old Johnny is going for his first journey with no parents.

A children's adventure spy film from a time when the radio telephone was science fiction.