Michael Portillo continues his journey from Pembroke Dock to Cambridge. On this leg, he begins in the ruinous gardens at Aberglasney in Llandeilo before riding shotgun in the driver's cab on the Heart of Wales Line on one of the most scenic routes in Britain. En route, Michael learns about the Victorian signalling system still in place today and struggles with his Welsh pronunciation. Over the border in Leominster, Michael steps out on to the dance floor at the Lion Hotel Ballroom, where a grand ball was held to celebrate the opening of the Ludlow to Hereford railway. He finishes this leg of his journey at a traditional cider house in Hereford, where he is invited to enjoy the fruits of his labour.