Appalled by the suffering he witnesses in the slave camp, Zar Gul (Imraan Peerzada, the director's brother) resolves to fight injustice wherever he encounters it.

CNN: REALITY CHECK

Working pro bono, Charles Vogel contacted more than 100 survivors of the Nazi slave camp after the war and built a case against the two Berga commanders: Erwin Metz and his superior, Hauptmann Ludwig Merz.

CNN: After 63 years, vet learns of brother's death in Nazi slave camp

Where hymnody once came from the spontaneity of slave spirituals or camp meetings, worship songs are increasingly now focus-grouped by executives in Nashville.

WSJ: Russell D. Moore: Where Have All the Presbyterians Gone?