"Go to New York City and help those boys." When David Wilkerson heard those words in his heart late one night as he glanced at a picture in Life magazine, he was dumbfounded. The boys in question were members of a violent gang and on trial for murder. He was a country preacher settled comfortably in a little mountain church in Pennsylvania. What could God possibly expect him to accomplish--in New York City, of all places? But the thought would not...