The great powers of Earth divided among themselves the rights to colonize the planets of the solar system. This was supposed to be a guarantee of peace. However, this only became the reason for new conflicts... conflicts no longer on an earthly scale - on a cosmic scale... The remains of an alien ship were discovered on the Moon. Remains containing the secrets of the unique weapons of the “alien”! However, if this weapon is used, the consequences will be unpredictable for the entire solar system... And then they come into play. Thirty marines who fear neither God nor the devil. Thirty “tough guys” who made war their profession - and never suspected that one day they would have to fight to prevent war from happening...