Actor Bill Nighy narrates as cameras follow trains travelling though some of the most scenic landscapes in the world. The stories of these iconic railways are told by those who travel on, work on and live beside them. S5.E1 ∙ Australia's Indian Pacific September 30, 2021 The fifth series of the documentary series opens down under as we travel on one of the oldest steam railways in Australia on a coast-to-coast journey, and climb through the Blue Mountains aboard the iconic Indian Pacific. S5.E2 ∙ Sweden October 7, 2021 Our magical mid-summer railway journey through central Sweden starts in Dalarna. S5.E3 ∙ Welsh Borders October 14, 2021 A ride is taken aboard the Northern Belle in and out of England and Wales. S5.E4 ∙ Alaska October 21, 2021 Our journey begins in Anchorage, Alaska, where we board a luxury passenger train. We then head north to enter the vast wilderness of Alaska, America's largest and remotest state. S5.E5 ∙ Far North Scotland October 28, 2021 A close look is taken at the Far North Line, which travels from Inverness in the Highlands of Scotland to Wick in Caithness county, with a daily ScotRail service. S5.E6 ∙ York to Edinburgh November 4, 2021 Get aboard the magnificent steam train Tornado, coupled with 13 luxury vintage carriages.