Max spends a weekend away from Harmony, looking after a hotel, where the only couple staying are a mystery. Lomax is left to play host to a married couple when he calls on an old friend and, later, becomes involved in a mystery when the wife is abducted.

A birthday barbecue at a Cheshire country house is gate-crashed by a motorcycle gang. Lomax, who is working as a part-time barman, attracts the attention of a tipsy woman, the mother of the party girl, who demands he drive her home. They arrive back at the country house as the police are dealing with the gate-crashing bikers.

Lomax and Steve, Max's son, spend a week together on the canals; Steve challenges Max to prove his innocence. He knows his father needs money to finance his quest and robs a betting shop. However, the shop belongs to local gang boss, Jack Ormand, who sets his heavies on the trail.