The former Martian territory continues to harbor many dangers. Major Travis and Earth set off to take over the heavy legacy of Natrid's technical legacy. First, a lot of debris must be cleared, and the Martians' enemies located. Patrols are flown in the Milky Way. The hatred of the Worgass, an ancient race from Andromeda, is immense. They want to wipe out all humanoid life. They are on the lookout for renegades who disobey their orders. The ancient traces of the Ablonders are analyzed. The immortal Lantrans reappear on the scene and lay down rules of conduct. When pirates attack, the fleet of the new empire must ensure order. The Najekesio, also descendants of the Natradians, disagree with the Terrans as custodians of the Natrid heritage. They try to contest their inheritance. But they have miscalculated.