Banks is on holiday, headed for Fisherman's Wharf in San Francisco. His daughter, Tracy, home in Leeds and angry with her father, is headed for some very deep trouble. Handguns are illegal in the U.K., and whenever one is reported, the police swing into high gear. But things go very wrong when the police swoop down on a home in Eastvale to seize a reported handgun. In the confusion, Patrick Doyle, a former neighbour of Banks, is shot. Doyle's daughter, Erin, is to blame for the gun being in the house, and while she's in police custody, her housemate in Leeds, Tracy Banks, decides to let Erin's boyfriend know that the police have been around their place. Bad decision. When Banks returns home from holiday, Tracy is missing. And that's not the worst of it.