Howard Marks (AKA Mr. Nice) presided over one of the most notorious drug empires in recent generations. While petty dealers fretted over ounces and pounds, Howard oversaw a 30 tonne consignment of marijuana. Following his incarceration, he soon became a symbol of radical counter-culture, publishing a bestselling autobiography and inspiring a cult-classic movie. A strident supporter of free speech and drugs legalization, he’s made an indelible impact on our society, leading a life of great extremes. This is his story.