Ein feste Burg ist unser Gott
The time frame of the film is 1505–1530: Luther's entrance into St. Augustine's Monastery in Erfurt to the presentation of the Augsburg Confession. It recounts Martin Luther's struggle to find God's mercy: his discovery of the gospel in Romans 1:17, the posting of the Ninety-five theses, and the subsequent controversy, which led to Luther's being separated from the church of Rome. It shows Luther's resistance to the forces of radicalism, and his work to establish and maintain the evangelical movement of his day. The dramatic climax of the film is Luther's "Here I Stand" speech before the 1521 Diet of Worms, and the grand finale is the singing of "A Mighty Fortress Is Our God" by Luther's congregation.