The TV series "Red Mountains" is a Russian military action film about the fates of two named brothers. The events take place in 1920 in Vladivostok. The whirlwind of the Civil War engulfs the entire country. Ilya, raised by a Japanese officer, and Arkady, the son of a White Army colonel, pretend to be relatives in order to survive. But life decides to test their friendship. At first, both young men fall in love with the same girl - the daughter of a Red Army commander, Evgenia. And then the Great Patriotic War separates them on opposite sides of the barricades.