Underbelly is a dramatized true crime series that showcases some of the most infamous (largely gang-related) crime stories in Australian history.
Season 1 covers the Melbourne gangland war of 1995-2004 and ultimately focuses on Carl Williams.
Season 2 is about how Griffith NSW became the drug production capital of Australia.
Season 3 focuses on Kings Cross nightclub owner John Ibrahim.
Season 4 is set in Sydney in the 1920s and focuses on a battle between two brothel empires.
Season 5 is set in Sydney in the early-2000s and focuses on underworld figure Anthony "Rooster" Perish.
Season 6 is set in Melbourne in the 1910s/20s and focuses on Squizzy Taylor.