Walker and Perkins investigate a domestic burglary with a twist - the apparent culprit has been shot and kneecapped by the property's owners, Anna and George Talbot. However, when they discover the victim is Anna's first husband, Jan, they uncover a string of fake marriages and con tricks, whereby Anna has been marrying vulnerable older men to get her hands on their money. Meanwhile, Smith and Hollis arrest the driver of a vehicle reportedly involved in a hit-and-run - but when the suspect turns out to be one of Kristen Shaw's henchmen, she asks Nadir to retrieve the car for her. Valentine and Hardy investigate a targeted campaign of abuse against arson witness Kathy Clarke.
