United Humanity of the year 2468... A wonderful new world created through the efforts of thousands of passionaries, among whom are the descendants of Marusya Gumileva. Lieutenant Matvey Gumilev has just graduated from the prestigious lunar academy of the Cosmoflot. All roads are open to him, but he chooses the most difficult one: service in the special Bellona brigade, which fights interplanetary crime every day and every hour. The space routes of the future are turbulent. Pirates, nestled in the remote corners of the solar system, rob caravans and kidnap people. Their agents infiltrate major corporations in order to find out modern terraforming technologies. Blazing the fire of plasma cannons, spaceships fight in the orbits of Jupiter and Saturn... Rarely does Lieutenant Gumilyov have the opportunity to leave the cockpit of his corvette. But one day he finally meets the girl of his dreams: Anna Petrovskaya. Matvey and Anna seem to be made for each other... But they do not know that fate is preparing unexpected trials for them.