Travelling along the Leeds and Liverpool canal, Bill Oddie, Jennie Bond, Anne Diamond and Pete Waterman eventually leave Yorkshire behind them and head into Lancashire. Pete and Anne discover a Polish war memorial and learn about the role canals played in the Second World War. Bill goes in search of an elusive kingfisher, while Jennie walks in Charlotte Brontë's footsteps. Later, Anne samples a Fat Rascal, Pete tries to turn Bill into a steam engine nut and the entire quartet disappear into the dripping darkness of Foulridge Tunnel, where they find out about a famous cow who once swam it.