Montreal has long had a reputation as a city with a fascinating criminal underworld, and a popular Crave documentary series is taking viewers even deeper into that history. The acclaimed Kings of Coke franchise returns this month with two new chapters. New Blood explores the rise of a billion-dollar cocaine empire, the Quebec Biker War, and one of the largest police investigations in Canadian history. The Legend of Rory Shayne examines the life and mysterious disappearance of one of Canada's most notorious bank robbers. Nick Rose, co-writer of Kings of Coke, spoke to Andrew Carter.