时值 1943 年，柏林夏利特医院的工作人员努力应对二战和纳粹统治带来的影响，其中就包括优生医疗实践。

　　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.

第三季讲述了一群年轻的 U 型潜艇船员的命运，他们参与了大西洋战役，被一位痴迷的皇家海军指挥官 (雷·史蒂文森饰) 追捕，并被派往南半球执行一项危险的任务。他们在罗伯特·埃伦伯格 (弗朗兹·丁达饰) 的指挥下结成了强大的个人联盟。

　　年轻美丽的芭蕾舞演员玛蒂尔达·克谢辛斯卡娅在一次表演中面对突发状况处变不惊的态度以及她那迷人的眼神和曼妙的舞姿，引起王储尼古拉的注意。同样对玛蒂尔达心生爱慕的还有王室宗亲安德烈公爵以及妒火中烧不惜袭击王储的狂热分子沃龙佐夫。虽然已有婚约在身，但尼古拉还是不可救药地陷入情网。沙皇亚历山大三世逝世，尼古拉不得不履行婚约，以便加冕为王。得知尼古拉婚讯的玛蒂尔达伤心不已，唯愿在加冕典礼前的舞会上献舞，可这唯一的心愿还遭到保卫王室安全的长官弗拉索夫的阻挠。玛蒂尔达心有不甘，还是冲上舞台。她的献舞并不完美，但却坚定了尼古拉与她厮守的决心。正当玛蒂尔达满心期盼地等待尼古拉的到来时，挣脱囚禁的沃龙佐夫突然出现将其掳走，而欲将她置于死地的弗拉索夫更是痛下杀手。以为爱人已逝的尼古拉心灰意冷，决定与德国大公爵之女阿里克斯完成加冕典礼。这时，幸免于难的玛蒂尔达突然出现，然而一切都无法挽回，有情人难成眷属。

爱情从来本应只是两个人的事，但当一段感情要开开心心长流不息，最终注定还是要看双方家长面色。来自德国的Maria 与犹太裔恋人Shira 甜蜜幸福，相恋不久已决定长相厮守。当Maria 来到以色列与Shira 共聚，才发现文化冲突水土不服令她无所适…