This historical-biographical film begins in the first days of November 1918 on the western front. News comes to the soldiers of a revolutionary uprising in Kiel. Young Thälmann, a soldier against his will, would like to join the expanding conflict on the side of his comrades in Hamburg. As the revolution becomes threatened by the betrayal of the right-wing Social Democrats and the splintering of the working class, he nevertheless tries unremittingly to unite the workers. The reactionaries grow ever stronger and the neediness of ordinary people multiplies. In this dire situation, the Hamburg police commissioner would like to block the unloading of a ship full of provisions that were sent from Petrograd as a message of solidarity. But Thälmann prevails in unloading it. The high point and conclusion of the first part of the Thälmann films is established at the Hamburg Uprising in October 1923.