The leader of the Khiva Basmachi movement, Junaid Khan, and his troops are waging a desperate struggle against the Bolsheviks. The security officer Amanli Belet, posing as a supporter of the Basmachi movement, agitates the horsemen to go over to the side of the Bolsheviks. But Junaid Khan deals with Amanli and his family, deceitfully lures the security officer’s son to his side... And two bosom friends - Ashir and Nury - find themselves on opposite sides of the invisible front line.