Inès在一家位于布加勒斯特的德国大型企业工作。她的生活一直井然有序，直到她的父亲Winfried突然造访，并向她提出了这个问题：“你幸福吗？”面对这个根本无法回答的问题，她的生活开始出现一系列翻天覆地的变化。她并不喜欢自己的父亲，甚至有点以他为耻，但他却通过捏造一个名叫Toni Erdmann的诙谐人物，试图为她的生活找到一个方向。

Season 3 follows the fortunes of a young U-boat crew as they engage in the Battle of the Atlantic, are hunted down by an obsessed Royal Navy Commander (Ray Stevenson) and are sent on a dangerous mission to the Southern Hemisphere. Together they form strong personal alliances under the command of Robert Ehrenberg (Franz Dinda).　　And yet Ehrenberg's thoughts remain in Kiel, where he has developed feelings for Greta (Elisa Schlott). The young mother is married to a man who is seriously injured and suffering from war neurosis. Also in Kiel, Wilhelm Hoffmann's daughter Hannie (Luise Wolfram) is trapped in a loveless marriage to Commander Albrecht Lessing (Florian Panzner), a bitter, emotionally distant man. Hannie suffers under the tight constraints of her status and the social expectations that go with it. When she meets the charming submarine commander Schulz (Pierre Kiwitt), she is playing with fire.　　Meanwhile in the exotic climes of neutral Lisbon where the exiles, spies and criminals of Europe rub shoulders with each other and their enemies, Hagen Forster (Tom Wlaschiha) discovers a lethal plot to steal a fortune in plundered war time gold. These discoveries and aspects of his own history deriving from dark experiences on the Eastern front, lead him to question his own actions and moral path. They also lead him to a shadowy figure caught up in a conspiracy that might change the course of the War - for the better. That man, very much changed by his own shattering experiences, is Klaus Hoffmann (Rick Okon). These two historically based strands come together in an unexpected, thrilling finale.

Vienna, 1920. The Austro-Hungarian Empire has collapsed. Peter Perg returns home from the Great War, after seven years as a Russian POW. Vienna is experiencing the multiplicity of political, social and artistic freedom, but also the rise of anti-democratic movements, insecurity and unemployment. Peter, a former police inspector, feels like a stranger in the new Austrian Republic. While wanting to leave town, Peter is confronted with the murder of one of his former comrades. He decides to stay and instead bring the killer to justice. His ally is Dr. Theresa Körner, a determined and cool-headed forensic doctor. The two are linked not only by this case, but also by a deeper, shared history. As their investigation progresses, they realise that they are not just up against a systematic killer, who tortures his victims, but also face disapproval and intrigue from within the police force. Though determined to solve the crime, Peter, harbouring his own secrets, increasingly becomes tormented by existential questions What is truth What is heroism in the time of war And all the while he fails to see the mounting danger before him.