When a market trader is held at gunpoint and his van is stolen, Nick suspects Lord Ashfordly's spoiled and erratic son Rupert has something to do with it. The youngster begins using his position at Ashfordly Hall to make life difficult for the Ashfordly officers, and even Blaketon is powerless against him. Meanwhile, Kate befriends a pregnant teenage girl and soon discovers why she is so desperate to conceal the father's identity, whilst Greengrass arouses suspicion with his new boots.

A quiet night at the Aidensfield Arms turns into a life or death situation when the pub is targeted by armed robbers, and Nick, Greengrass and George find themselves held at gunpoint in the cellar. Meanwhile, a tip-off from the most unlikeliest source leads to the Ashfordly team cracking down on a number of past crimes, whilst the local newsagent causes a stir when he begins selling Swedish pornography.