When dad agreed to take Alyosha on an expedition to another planet, he, of course, promised to behave obediently and carefully. But will you keep such a promise?! First, the boy met Fugo, a mimic who can take on any form. And he secretly carried it onto the spaceship. Then the new friends went for a walk outside the scientists’ camp... and that’s when the troubles started. Alyosha and Fugo were kidnapped by wild aliens! It’s good that Cicero, a strong and smart cargo robot, is already rushing to the boy’s rescue. But the surprises on the unexplored planet Timiuk are not over yet...