offers an inside look at some of the world's most notorious criminal organizations. Each episode explores three legendary moments from a specific underworld group, ranging from mafias and cartels to motorcycle gangs and prison gangs. The series spotlights lucrative money-making rackets, deadly turf wars, iconic mob hits, crafty informants, and federal takedowns. Featuring infamous gangsters such as Al Capone, Pablo Escobar, El Chapo, John Gotti, Whitey Bulger, and Sonny Barger. Interviews with journalists, authors, and former members of these organizations offer an exclusive window into the inner workings of these groups.