The fifth and final part of the cycle of Soviet television feature films, filmed by director Igor Maslennikov based on the stories of the English writer Arthur Conan Doyle about the famous detective Sherlock Holmes. In the first part based on the works - "The Adventure of the Engineer's Thumb", "The Adventure of the Second Stain". In the second part based on the works - "The Adventure of the Bruce-Partington Plans", and "His Last Bow".
Ratio Rasch, the president of planet Gyllenblå, has banned laughter and emotions in order to create a society based on reason. Police are constantly patrolling the planet and anyone caught laughing is imprisoned and given anti-laughter serum. Only a few members of an underground guerrilla oppose the president. On Earth, the eccentric Dr. Krull listens to signals from outer space and realizes that something needs to be done so he sends the two children Cecilie and Fredrik to Gyllenblå. Epicykel, a guerrilla member, senses their presence and hopes to get to them first but fails. The children are put in school, where Fredrik has great difficulty controlling his laughter but Cecilie adapts well. The guerrilla knows that laughter is contagious and Fredrik gives them new hope of returning laughter to the people of Gyllenblå.
The year is 2067 and fans all over the globe follow the ARC, a futuristic NASCAR in the clouds! Four of the world's best pilots are in a continuous race for first place on the track. Off the track is a different story. There they become an elite flying team known as the Metasquadron. Under the command of Captain Strong, the Metasquadron transform their lightening fast race jets into battle-ready fliers. The pilots work together to protect people globally from harm, usually at the hands of the evil General Raven and his Black Cloud organization.
Cosmic vagabond Li Yuesu accidentally finds the immigrant spaceship "Shangjia" that disappeared many years ago, and witnesses a terrible anomaly... People are gradually discovering a great danger approaching humans. All forces in the region must work together to face a powerful enemy. Unexpectedly, the strength of the alien race was beyond expectation. When the humans in the Conil Starfield were wiped out, they had to send Li Yuesu to ask for help from the powerful human civilization in the heart of the galaxy...
Year 1944 ... Year breakthrough victorious in World War II, but in the Baltic theater of naval battles yet quiet. The line of duty, the commander of a torpedo boat Boris Shubin accidentally discovers a secret German submarine fairway unmarked. An emergency throws it on the "Flying Dutchman" and makes it possible to lift the veil of the strictest secrecy of the Third Reich, which surrounds it ...