Country music royalty Johnny Cash and June Carter remain to this day one of the most famous couples of the 20th Century. Created with the support of the family and told through the eyes of their son John Carter Cash, this new musical covers it all: their childhoods, their 1956 meeting at the Grand Ole Opry, the storied on-stage proposal in 1968, and the soaring highs and whiplash lows of fame, life on the road, addiction, arrests, controversies, marriage, family and devotion.