Ted McCabe, a retired cop, and Lennie Cahill a retired crim, get together to solve crimes, unravel scams and make some cash, while avoiding the wrath of the police and the underworld.

A British diplomat is arrested on charges of working with Russian mafia. After death threats to his wife, they are taken into protective custody. Then the MI6 shows up with a new piece of the puzzle.

Underbelly is an Australian television true crime-drama series, each series is a stand alone story based on real-life events.