(Underbelly Files: Infiltration/2010) Based on the book by former Detective Sergeant Colin McLaren, Underbelly Files: Infiltration is a dark look into Griffith (south-western New South Wales) from 1992 to 2002, during the reign of the Australian Calabresian Mafia ? the N?Drangheta. McLaren and his team were set up to monitor and to work to bring down the Mafia on the authority of the Australian Government. No small task, and one that put many lives in danger (and cost a few in the process.