From a young age, the heir to the imperial throne, Roger McClintock, tried to understand why no one, not even his own mother, took him seriously and did not consider it possible to entrust him with any serious matter. So this time, His Imperial Highness had to complete a very modest mission...

However, as a result of sabotage carried out on board the ship by enemies of the Empire, and an attack by space bandits, Roger and his team find themselves on the distant planet Marduk, where the prince finally the opportunity presents itself to prove that he is worthy to take the imperial throne.