n American, Leopold Kessler (Jean-Marc Barr) goes to post-war Germany in 1945 to work as a railroad conductor for the Zentropa Rail Line instead of going into the Army because he feels its a more valuable thing to do for the state of the world. He meets Katharina Hartmann (Barbara Sukowa), the daughter of the railroad owner and they fall in love.

Overview from themoviedb.org