Something was gnawing at David Zach. For years he had been performing with his band Remedy Drive, singing and telling people about hope and faith. But when he read scripture, especially the prophets, he felt challenged. He sensed a call to do more on behalf of the poor and the oppressed. That call led this lead-singer of a rock n’roll band to risk his life, working undercover with The Exodus Road to help rescue prisoners of sex trafficking.