The fifth series, Underbelly: Badness, is based on Sydney underworld figure Anthony "Rooster" Perish, his brother Andrew and their associates.
Tell Them Lucifer was Here is about the 1998 murders of Victorian police officers Gary Silk and Rod Miller and the subsequent manhunt for their killers.
Infiltration is about the story of Australian police detective Colin McLaren's infiltration of the Calabrian Mafia in Griffith, New South Wales which saw dozens of underworld figures imprisoned The Man Who Got Away tells the story of David McMillian, a drug smuggler and the only Western man to ever escape from Bangkok's Klong Prem Central Prison.
[4] In September 2011, a New Zealand version of the series premiered on TV3, titled Underbelly NZ: Land of the Long Green Cloud.
The cast includes Jonathan LaPaglia as Anthony Perish, Jodi Gordon, Matt Nable, Josh Quong Tart, Aaron Jeffrey, Jason Montgomery, Hollie Andrew and Leeanna Walsman.
[6] Season 6 occurs between 1915–1927 in Melbourne and tells the story of one of the city's most notorious criminals, Squizzy Taylor, who made an appearance in Underbelly: Razor, which was set in 1920s Sydney.
It stars Brett Climo, Jeremy Kewley, Todd Lasance, Greg Stone, Dimitri Baveas, Ditch Davey, Jane Allsop, Annie Jones, Paul O'Brien, Daniel Whyte, Chris Bunworth, James Taylor, Craig Blumeris, Jasmine Dare, Marshall Napier, Robert Taylor, Shanti Pezet and Lee Cormie, with a return guest appearance by Don Hany as Nik ‘The Russian’ Radev – the same character he played in the original Underbelly series (which was set a few years after the events that take place in this movie).
Like the first series of Underbelly in Victoria, releases of the DVD that contained Tell Them Lucifer Was Here had a warning sticker banning the exhibition of the telemovie in NSW.
He and his police partner lived undercover in Griffith, New South Wales for a number of years, in order to infiltrate the very closed and deadly Mafia community there.
For days, weeks, then months and years, Colin eats with them, sits in their homes and cuddles their kids, all the while climbing the ‘Ndrangheta, finally befriending the Griffith Godfather, Antonio Romeo.
[13] The Man Who Got Away tells the story of David McMillan who was a British born Australian drug smuggler and the only westerner in history to escape from Klong Prem prison in Bangkok.
The cast also features Jeremy Sims, Aaron Jeffery, Nicholas Eadie, Brendan Cowell, Freya Stafford, Josh Lawson, John Orcsik, William Zappa, Heather Mitchell and Deidre Rubenstein.
The series saw the return of Robert Mammone as Mokbel, Vince Colosimo as Alphonse Gangitano, Gyton Grantley as Carl Williams, Les Hill as Jason Moran, Madeleine West as Danielle McGuire, Simon Westaway as Mick Gatto, Gerard Kennedy as Graham Kinniburgh and Kevin Harrington as Lewis Moran.
[22][23][24] It follows Nicola Gobbo from her days studying law at Melbourne University in the mid-1990s, up to the very end of the deadly gangland war in 2010 following Carl Williams' death in Barwon Prison and the aftermath.
Jane Harber also returns as a policewoman this time to Underbelly, previously portraying Detective Steve Owen's partner in the first season.
It would not be based on the original series, but instead the writers would look for American gangs and rewrite situations in Underbelly: A Tale of Two Cities, replacing character traits and outcomes.