Inside the Gangsters' Code: Temporada 1, Episódio 5

1 - 5: The Grypser Gang, Poland

Lou heads to Poland, home to more than 500 criminal gangs, to infiltrate the shadowy underworld of The Grypsers. Known as ‘The Smart Ones,’ they are a notoriously private and secretive prison gang that forms approximately 70% of the Polish prison population. Lou is on a quest to discover if The Grypsers control the Polish Mafia outside prison, or if the Polish Mafia control The Grypsers. Along the way he’ll visit some extraordinary Grypser bosses, an English speaking 'protected witness' who was tortured, scalped and left for dead after his debt to the Polish mafia went bad. His subsequent evidence has led to 30 gang members being put in prison, so he is now under permanent armed protection.