Max is released from prison and returns to London to find that his wife has emigrated and that his son is missing. He leaves London and embarks on his narrowboat Harmony. He takes up with a young woman, Andrea, and sorts out a demanding drug dealer for a former nurse who has become addicted. He gives her the drug dealer's money so she can book herself into a clinic.

Max continues his search, accompanied by Andrea. Max has to visit his sick mother in London. While he is away, Naylor interrogates Andrea about 'The Money' and sets fire to the boat. On his return Max seeks out Naylor at home and warns him off. Naylor gives chase on his motorbike, but ends up crashing through the barriers of an elevated motorway.

Max's quest leads him to a village in Wales, where he immediately comes under suspicion when a local girl goes missing.