Moscow, 1952, mid-October, the XIX Congress of the CPSU had just ended. A communal apartment on Bolshaya Pirogovka. In one of the rooms lives the Petkevich family: Ariadna with her husband Boris and her parents, professor of philosophy Peter Kazimirovich and his wife Angelina Fyodorovna. For those few months that remained until Stalin's death, the family experiences a series of dramatic events. But on a background of terrible time, antisemitism, fabricated "case of doctors", denunciations and snitches, there are people who live their lives without losing dignity.

Cosmoball is a mesmerizing intergalactic game of future played between humans and aliens at the giant extraterrestrial ship hovering in the sky over Earth. A young man with enormous power of an unknown nature joins the team of hot-headed superheroes in exchange for a cure for his mother’s deadly illness. The Four from Earth will fight not only to defend the honor of their home planet in the spectacular game, but to face the unprecedented threat to the Galaxy and embrace their own destiny.

War destroys hopes, dreams, mercilessly burns generations.