Mike takes the law into his own hands when Steve is accused of the murder of his wheeler-dealing uncle, Martin. Tensions mount as Mike's jealousy over Melanie's new boss, Nick, threatens to cloud his judgement.

Mike and Melanie are thrown together in peril when they confront escaped convict Harry Badden and his brothers in an isolated cottage. Charlie has a broken arm and his daughter, Mollt, is diabetic and needing insulin shots.

Mike falls for a visiting journalist, Sara, but Melanie is uneasy about their fledgling relationship, believing the reporter may be using him to get information for her latest story. Her suspicions are heightened by a series of break-ins. Meanwhile, in a seemingly unconnected incident, a tenant at Tony's caravan site begins an increasingly violent war with him, over the provision of facilities. At the same time, a property developer's boat is broken into.