The heroes of the film are first-graders Snezhana and Alyosha Seroglazov, who received the nickname "TwoBriefcases" because of his small stature on the first day of attending school, as well as a small puppy Kysh.

When old pirate Billy Bones moved into the Admiral Benbow Inn, young Jim Hawkins had no idea that his life was about to change dramatically. But he was lucky enough to discover a map of Treasure Island in the sea vagabond's chest. And so Jim, accompanied by Dr. Livesey, Squire Trelawney, Captain Smollett, ship's cook John Silver, and his talking parrot, sets off on a long and dangerous journey...

A military academy graduate, Andrei Kartashov, receives an assignment to serve in his hometown. However, the hero is not happy about it and asks the higher authorities to send him to the Far East instead...

Sergei and Tanya are in love with each other. Sergei is drafted into the marine corps and Tania waits for his return. Sergei's division is abandoned in favor of helping local residents in distress. During the operation, his armored personnel gets carried into the sea. His relatives receive a notice of his death. Tanya's loving childhood friend, a hockey player, helps her to cope with misfortune and she marries him. But it turned out that Sergei did not perish. He, together with a wounded friend he saved, are found on a deserted island after a long winter. Back home, Sergei learns that Tanya has married another. Unable to accept the loss of his beloved, Sergei dies; but this death is a symbolic and emotional one, not physical. Sergei continues to live a normal life without shock and strong distress, meets another girl, marries her, has a child. In the finale there is a spiritual rebirth of the hero.