An experienced intelligence officer arrives in the USSR as a tourist. The staff of the State Security Committee manages to find out the real reason for Miss Luster's visit, to reveal all her numerous connections with agents of foreign intelligence, to expose and eliminate the criminals.

The teenager Misha Polyakov, being with his mother in a Ukrainian village on vacation with his grandmother and about to return home to Petrograd, offers his best friend Genka to go with him. Suddenly, a white gang of Nikitsky bursts into the village and attacks Misha’s house, where Commissioner Polevoy lives. The purpose of Nikitskiy (aka Nikolskiy) is a dagger located at Polevoy. Saving the commissioner, Misha learns from him the history and secret of the weapon, and receives it for storage with a request to solve the secret. Having returned with adventures to Petrograd, Misha Polyakov with friends begins to unravel the riddle of the dagger, in the handle of which is encrypted text.

A first part of story about a Soviet spies trying to infiltrate German Intelligence center "Saturn" during and after the WWII.

The action takes place in 1920 during the Civil War. Crimea on the eve of complete liberation from the White Guards. Returning from patrol, the four brave “elusive” knocked down an airplane. In the field bag of the captured pilot, they find a secret report, which speaks of the existence of defensive fortifications around the coastal city, which the Reds have yet to take. Young heroes get the task to get a map of fortifications and go to the city...

In German-occupied Crimea during WWII, a group of Russian soldiers employ unusual tactics to steal classified documents from their enemies.

The Path Towards Uninterested Love: On one of his trips through the nature reserve, the ranger Michailytsch found a young lynx whose mother was killed by a bear. He takes it with him to his log cabin and calls it Kunak, which means friend. The young lynx gets used to the human environment. He grows up to become a stately lynx. When he attacks a rooster one day, he is sent away... The story is mixed with lots of beautiful nature documentary footage. Awards: International Children’s Film Festival in India – Grand Prize, 1974