The National Serious and Organized Crime Unit is a specialist department set up to combat organized and serious crime: crime families, gangland killings, extortion; major drugs and firearms trafficking. Jack & Tony Finn are the double act of the squad. Audacious, witty and apparently fearless, Jack is proud of his reputation as a ball-breaking cop. With his success comes a string of girlfriends and a flashy Audi TT. Tony is a family man with two kids who can't understand why Jack's not married.