This documentary offers an inside look at the creative process of some of today’s most gifted songwriters as they craft new music using recently unearthed lyrics from Bob Dylan’s iconic Basement Tapes sessions. Under the guidance of T Bone Burnett, artists like Elvis Costello, Rhiannon Giddens, Taylor Goldsmith, Jim James, and Marcus Mumford come together for an intense two-week recording session in the basement of Capitol Records. The film also includes a rare interview with Bob Dylan himself.