A Russian spacecraft that is supposed to deliver an alien artifact found on the moon to Earth is attacked by a special forces group under the command of Colonel Lanir. The purpose of the attack is to force the ship's crew to make an emergency landing on the Arabian Peninsula. Co-pilot Yevgeny Rodionov, flight attendant Alina Blinova and lunar base dispatcher, and in fact senior lieutenant of state security of the Russian Union Anna Grekova, have several hours to prevent sabotage.