It's 1977, 10 years after Big Rock Beat, and Beau Young is back. Now he's playin' the blues -- literally. As he tours smoky dives with blues legend Oakland Slim he uncovers an evil voodoo plot to assassinate the remaining blues masters. But disco rules, so who cares about a few dead blues greats?

Then legendary blues martyr Robert Johnson turns up alive 43 years after his reported death, a victim of a New Orleans witch's zombie poison, not a jealous husband as originally reported. Beau knows Johnson could be the key to the murders. But Robert Johnson sold his soul to the devil decades before. With Beau's help he must return to the infamous crossroads and face his destiny. And both of them must face the awesome power of the Mojo Hand.