Michael Portillo begins underground at Big Pit coal mine in Blaenavon, where he discovers how Victorians toiled night and day to power the Industrial Revolution. On the River Usk, he learns about 19th-century developments in angling before heading to Ascott-under-Wychwood in Oxfordshire - once the scene of a farm labourers' dispute that ended in rioting. Michael concludes this leg of his journey at Blenheim Palace.