Willi Zubrodt is delegated by his department to a parachuting course at the GST. As he is not very disciplined, has no respect for the instructors and does not fit into the collective, the instructors try to show him up and force his expulsion from the course. However, the attempts to prove that he had gaps in his theory and physical condition were a complete failure. Zubrodt manages to turn the tables each time.

Hannes Peters is delighted that he can escape his unloved job as a chef and join the navy. He is overjoyed to be assigned as a hydroacoustician. But then the cook falls ill and Hannes is transferred to the galley. He resists, serves inedible dumplings and oversalted coffee, but it doesn't help! For a while, he has to do his duty as a smutje and finally realizes that everyone in the navy is in the same boat.