A chronicle of country music legend Johnny Cash's life, from his early days on an Arkansas cotton farm to his rise to fame with Sun Records in Memphis, where he recorded alongside Elvis Presley, Jerry Lee Lewis and Carl Perkins.

Paul Rivers, an ailing mathematician lovelessly married to an English émigré; Christina Peck, an upper-middle-class suburban housewife and mother of two girls; and Jack Jordan, a born-again ex-con, are brought together by a terrible accident that changes their lives.