Loving, music-filled tribute to Chris Strachwitz, guiding force behind legendary roots music label Arhoolie Records. With Ry Cooder, Clifton Chenier, Richard Thompson, Flaco Jiménez and a new generation of roots musicians.

Directors Werner Herzog and Errol Morris make a bet which results in Herzog living up to his promise that he would eat his shoe if Errol Morris ever completed the film Gates of Heaven.