The action begins in 1995 when the Melbourne crime syndicate 'the Carlton Crew' dominate the scene. Drug dealing brothers Jason and Mark Moran (Les Hill and Callan Mulvey) emerge as key players, and are kept under the scrutinising eyes of police officers Steve Owen (Rodger Corser) and Jacqui James (Caroline Craig), members of Task Force Purana. When Jason's driver Carl Williams (Gyton Grantley) double-crosses the brothers in a drug scam it sparks off a chain of bloody events; with more double-crossings, alliances made, alliances broken, extortion, hits ordered, killings, avenge killings and numerous spells in prison. With slick production design, and a huge cast of colourful characters interweaving across the show's long time-frame, it's clear why UNDERBELLY has been heralded one of Australia's best ever crime dramas.