Welcome to Batch Magna, a place where anything might happen. And often does...
Life in an old steam boat deep in the Welsh Borders holds numerous charms, but the Commander's wife Priny is suffering from arthritis, a condition not at all improved by their water-based lifestyle. The couple take up an offer from Humphrey, the squire of Batch Hall, of a straight swap: their boat, the Batch Castle, for one of the Masters' Cottages facing their beloved river.
The Castle is restored to river-worthiness and starts plying successfully as the Cluny Steamboat Company to Shrewsbury and back. As a result it takes a good deal of profit away from a taxi firm in a local border town, much to the displeasure of the firm's English owner, Sidney Acton. Enlisting the aid of two corrupt Welsh councillors, Acton plots against the new venture. Only time will tell if his sabotage attempts will bear fruit or blow up in his face...
