The night is April 5, 1968 - one night after the assassination of Martin Luther King, Jr. and America's inner cities began going up in flames. There is already violence in Boston's heavily-black Roxbury neighborhood, and word on the street is that it's about to get a lot worse. Mayor Kevin White is trying to keep the fragile peace and one reported idea was to cancel that day's biggest gathering - a long-scheduled James Brown concert at Boston Garden. But a call from one of Boston's most influential R&B DJs points out the danger of that decision. Simply, he says, if the concert is cancelled, Boston might have the biggest uprising since the Boston Tea Party. And so, faced with the grim reality of making the wrong decision, the mayor and his team turn it around. Rather than cancel the show, they ask "Is there something James Brown can do to help?" Now, 40 years later, through rarely seen footage of the concert and with the personal reminiscences of James Brown's band members, colleagues (including long-time manager Charles Bobbit), awe-struck concert-goers (including Newsweek's David Gates), Boston city government officials and the pointed commentary of several distinguished observers of African-American history (including Dr. Cornel West, Dr. Andrew Young, Rev. Al Sharpton) - the dramatic and emotionally-riveting story unfolds.