This is part one of a two-part biopic about Karl Liebknecht. In 1914, Germany is arming itself for war. Karl Liebknecht, left-wing revolutionary Social Democrat, workers’ leader and a virulent antimilitarist, is one among 110 SPD members of Parliament who vote against approving war loans. From then on, he is considered un-German and a traitor to the fatherland, and his own party’s leadership turns against him. Despite threats, Liebknecht speaks up against the war and writes the manifesto “The Main Enemy Is at Home.” Even when he is arrested and charged with treason, he does not surrender.

Leading chemist Hans Schramm is betrothed to Hanna, but falls in love with her younger sister Franka. The two attempt to repress their feelings, but eventually begin an affair. When Hans is extorted by a group of West German agents, who demand to know about his secret work, he is gripped by panic and decides the only way out is to flee to the West …

Lifelong hard work for the count makes the servant Anton a cripple. Everybody calls him Crooked Anton. When, after the end of the war, the land of the count gets divided amongst the farmers, Anton receives a piece and hopes to be able to work freely. But an old debt and intrigue keep Anton and his family from finding peace. The farmers of the village begin to discover their own power when Annegret, Anton's daughter, leaves. Is a new beginning possible for Anton? This film paints an impressive panorama of the development of a minor village in Mecklenburg from the end of the war to the uprising of 17 June 1953.

The two half-orphans Reni and Rolf are 13 and 10 years old and they live with their grandmother in Berlin. Their father has died during the war, their mother works at a Baltic Sea port. Here she meets a captain who wants to marry her. When their mother tells them about the planned wedding, Reni and Rolf are reluctant to meet the captain.

This film is the first of a two-part historical and biographical portrait of the communist politician and anti-fascist Ernst Thälmann. In early November 1918, Ernst Thälmann is an unwilling soldier serving on the western front. As the revolutionary movement at home is threatened by the betrayal of the Social Democrats and fissures in the working class, Thälmann calls on his fellow soldiers to put down their weapons and unite with the workers in the communist struggle at home. Thälmann’s qualms about which side he is fighting on continue, but when the local police attempt to prevent a shipment of provisions and supplies from reaching the people in Petrograd, he intervenes and the ship is unloaded. With this moment of clarity, Thälmann continues to follow his political convictions and joins the workers at the Hamburg uprising in October 1923.