Last Words - the search for AnnaMarie continues - the body of a woman is found in the woods. Luc suspects Mario, AnnaMarie's brother, has something to do with her disappearance but Dörig disagrees.

"Dangerous terrain". Mario is the main suspect in the Susanne Gruber murder case, but the Morgenthalers think it is Willi. Anna-Maria goes on her own search.

False Friends - A young climber falls from a tower. Was it an accident? The investigation of the murdered woman in the woods continues.

Luc and Fabio are summoned to the scene of a fatal car crash near a local monastery. Directed by Chris Niemeyer, 2015.

"Five minutes of bliss" (aka "Five Minutes of Happiness") - Ayumi kills her tyrannical Japanese father in a hotel room. Dörig chases the truth. Erika and Willi have a blissful breakfast. Anna-Maria tells Mario the name of her father.

"Family Ties" Season 4 finale: A fishmonger is brutally murdered. Mario is a suspect. Anna Maria decides to take on her brother alone. Luc and Fabio refuse to be left behind. Fabio takes a swim. Erika and Willi join all in a holiday party.