Narrowboater Robbie Cumming begins a fresh set of adventures along the waterways of the north of England and the Midlands. He is forced to make a running repair to his narrowboat the Naughty Lass while on the Tinsley lock flight in South Yorkshire. He then cruises beneath Conisbrough's magnificent viaduct and must wait for an unusual sliding railway bridge to open on the Stainforth and Keadby Canal.

Autumnal fog and an overheating engine prove to be problems for narrowboater Robbie Cumming. As he navigates a Roman waterway, it proves to be a journey of many challenges as he runs aground and breaks down in Nottingham.