Michael Portillo is in the seaside resort of Scarborough to explore one of the greatest royal fortresses in England, before heading to the beautiful neoclassical Rotunda Museum, one of the world's first purpose-built museums.

At Bempton Cliffs in the East Riding of Yorkshire, Michael join forces with Humberside Police in an unusual patrol vehicle. And in the lobster capital of Europe, Bridlington, he visits the Yorkshire Marine Research Centre to find out how they aim to keep stocks of the crustaceans healthy.

Michael Portillo has reached Lincolnshire, where his coastal railway journey from Middlesbrough ends. In Grimsby, he investigates an important new stage in the town's history - as a maintenance base for some of the largest wind farms in the world.

In neighbouring Cleethorpes, Michael is excited to ride on the Cleethorpes Coast Light Railway, pulled by a miniature steam locomotive, and on the shores of the mighty Humber estuary, Michael meets the Humber King, who holds the record for swimming across the Humber.

From Cleethorpes, Michael makes for a curious and wild stretch of coastline at Humberston. At Young's, he learns how half of all scampi produced in the UK is made – and tries it himself.