"So why did we land on the asteroid at all?.."—the young cosmonaut Mitrofan thought bitterly. The alien ship his family found had been resting on the asteroid for many millions of years. But it didn’t stop the Fog-people—fearsome and mysterious space invaders—from capturing the starship “Kashalot.” Repka and Korobok robots are switched off, and Mitrofan’s parents can’t help their children. Now Mitrofan, his brother Pelmeny, and his sister Disketka have no choice but to fight the treacherous aliens themselves. After all, the true rulers of the galaxy fear nothing at all…