Barnaby Walker (Jack Whitehall) couldn't live a more tranquil, middle-class life if he was a character in a Hollywood Rom-Com starring Hugh Grant. He lives in leafy Wimbledon, drives a Smart Car and is studying for a PhD in Flemish textiles. However, when his antiques-dealer father (Robert Lindsay) winds up in hospital following a mysterious accident bookish Barnaby takes it upon himself to save the family's cash-strapped business, but a dodgy deal masterminded by his dad leaves Barnaby fifty-thousand pounds down and lumbered with a looted Syrian treasure. He is determined to recover the cash, but to do so he needs some help - big time. In steps Nina Morales (Rosie Perez) a tough-talking, Brooklyn bounty hunter who Barnaby's sister just happened to bump into while travelling.