When an album that singer/songwriter Donnie Emerson (Casey Affleck) and his brother Joe (Walton Goggins) recorded as teens is rediscovered after 30 years of obscurity, it's suddenly hailed by music critics as a lost masterpiece.
While the album’s rediscovery brings hopes of second chances, it also brings long-buried emotions as Donnie, his wife Nancy (Zooey Deschanel), Joe, and father Don Sr. (Beau Bridges) come to terms with the past and their newly found fame.