A mysterious magnetic spool found during a construction project is discovered to have originated from Venus. A rocket expedition to Venus is launched to discover the origin of the spool and the race that created it.

Soldier Ignaz Wolz returns from WWI with an immeasurable hatred of capitalist war profiteers. He decides to start his own revolution, but tries to stay away from the organized class struggle. He steals from the rich men and divides the wealth among the poor. One day, Wolz is arrested and sentenced to life in prison; seven years later he is released due to mass protests. More than ever, it is hard for him to fit in. He severs ties with his former companions, who reject his ideas, and leaves Germany.