Bird reserve official Fritz Moser was skull-smashed and is found near one of the model airplanes he forbid -in vain- members of the club to come retrieve. H's found by a biologist guide and staff member with a shot at his succession, which for now goes to the administrative deputy. Looking into staff, Hansen and Korbinian find evidence of bribery and blackmail involving fraud and a project from the reserve's main sponsor to build a drones technology research center. Meanwhile, chief Achziger keeps brigadier Mohr in the dark about a plan to get him promoted.
—KGF Vissers