As punishment for the chief's ruined painting, Heldt must assist instructor Manfred Sievers in regional police academy, but goes about it his own unorthodox way, yielding divided reactions from the cadets. Maverick Muslim Layla Chalid, whose bacon he saves, terrifies even him with reckless initiative, which soon finds her electrocuted unconscious. Heldt couldn't resist 'tailing' Grüns and Bannenberg's case, addict Jablonsky's fatal OD with a new synthetic drug never spotted in Germany before, which heavily leaned-on cocaine dealer “Wild Willy“ Wilke helps trail to novel dealer Achim Rentschel, who runs a bowling hall.