Jan Wiener is a young Czech Jew struggling to survive at the outset of Nazi occupation during World War II. Jan Wiener is a young Czech Jew struggling to survive at the outset of Nazi occupation during World War II. Jan Wiener is a young Czech Jew struggling to survive at the outset of Nazi occupation during World War II. Jan Wiener is a young Czech Jew struggling to survive at the outset of Nazi occupation during World War II.