Underworld exposes the secret world of transnational criminal networks that have flourished since there were banks to bust, drugs to smuggle, and scams to run. Journalists Danny Gold and Sean Williams bring their experience reporting on dangerous people and organizations to take listeners on a global tour of mobsters, warlords and crooks - from Brooklyn to Beijing, from the streets to the boardrooms - and everywhere in between. Underworld is a show about heroes, villains, and the barely visible mafias that affect all our lives, whether we know it or not.