Shot before and after the unprecedented devastation of Hurricane Katrina, the documentary brings into focus the startling loss of Louisiana's rapidly disappearing coastal wetlands that are New Orleans' first line of defense against deadly storms. Told through the personal stories of four musicians, both legendary and rising, who are drawing attention to this environmental calamity. The story is both a document of Katrina's powerful effects, and a profound musical celebration of the city that has been called the "soul of America." It is a call to restore New Orleans and protect the vital wetlands from which the city's unique identity first arose.