Actor Ross Kemp is back with another documentary series, this time focusing on people around the world involved in illicit trading and other heinous crimes. In each episode, the former `EastEnders' actor confronts criminals responsible for drug dealing, human trafficking, murder and rape, and he also talks with the authorities who are attempting to bring these gangs down. Countries that Kemp visits over the course of the series include Syria, Colombia, South Africa, Ukraine and Northern Ireland.