Gdynia. Summer 1940. Franz Neumann is a 24-year-old Abwehr lieutenant. His stepfather is a high-ranking police officer in Gdańsk. He raised Franz with an iron hand, reserving more warm feelings for his younger brother Otto, who would soon set off on his first combat cruise on a destroyer. Franz is delegated to cooperate with the Krigsmarine, his direct superior is Commander Kessler. Franz does not shy away from alcohol and drugs, which are easy to find in the port city.