Behind the classic hymn "Amazing Grace" is the fascinating story of its unlikely author, John Newton, a onetime slave ship captain who converted to evangelical Christianity. The stories behind this enduring song and four others are presented here. The tunes include Horatio Spafford's "It Is Well with My Soul," Joseph Mohr and Franz Gruber's "Silent Night," Carl Boberg's "How Great Thou Art" and Joseph Scriven's "What a Friend We Have in Jesus."