Watch Great British Railway Journeys Season 6 Episode 18 Online

Michael Portillo makes his way from west Wales across Britain to Cambridge. On this leg, he begins underground at Big Pit coal mine in Blaenavon, where he learns how Victorians toiled night and day to power the industrial revolution. On the River Usk, Michael casts a line and learns about 19th-century developments in angling. On rebellious turf in Ascott-under-Wychwood, Michael discovers the Ascott Martyrs and lends a hand ploughing on the farm where they struck their early blow for labourers' rights. Michael's last stop is Hanborough and Blenheim Palace, where he investigates a fire described in his Bradshaw's which is said to have claimed some risque art.