This documentary recounts a low period in Cash’s life and career, focusing on the making of his famous album, “Man In Black,” while the legend was stuck in a cycle of depression and drug addiction. The core focus of the film is the iconic country star’s road to redemption and his return to an “unshakable faith” that would influence some of his most famous songs, like “The Man Comes Around.” The documentary features John Carter Cash, Sheryl Crow, Tim Mcgraw, Marty Stuart, Wynonna Judd, Jimmie Allen, Alice Cooper, Franklin Graham, Joanne Cash Yates, Greg Laurierie and many others, along with tapes from the Cash family archive.