The ISS crew has not been able to return to Earth for almost two years. It seems that everyone has forgotten about them. This is all due to military operations being carried out against the inhabitants of the planet by suddenly flying alien ships. Relations between the astronauts are heating up. The ship's commander, Ivan, begins to realize that there is a spy hiding in their small team who is trying to cause harm. Several people are under suspicion. At the same time, it turns out that research carried out on the ISS can help the inhabitants of the Earth overcome the Black Angels who attacked them. But the method is dangerous and can cost astronauts their lives. Nevertheless, the crew members decided to take a risk, since they saw no other way out. They must use the ancient language, the language of God.