Michael Portillo is back, taking to the tracks in Series 4 of the hugely popular BBC documentary TV series Great British Railway Journeys. Released by FremantleMedia International as a 5-disc set on 27th January, it features all 25 half-hour episodes from the fourth series.

Over the course of the five fascinating journeys Michael hears about the chilling tale of one of 19th-century Britain's most notorious murderers, samples Victorian foodie delicacies and tries his hand at cutting marble. He also puts in a shift at the oldest fish market in Britain, visits a garden used as a viewing platform for public hangings and learns how Victorian whisky trains were raided by robbers. His impressive railway journey takes him across:

High Wycombe to Aberystwyth (High Wycombe to Stratford-upon Avon, Birmingham to Stafford, Stoke-on-Trent to Winsford, Dudley to Bridgnorth, Welshpool to Aberystwyth)

Portsmouth to Grimsby (Portsmouth to Gomshall, Woking to Clapham Junction, Victoria to Abbey Wood, King's Cross to Peterborough, Spalding to Grimsby)

Stirling to John o' Groats (Stirling to Invergowrie, Dundee to Aberdeen, Dufftown to Aviemore , Inverness to Plockton, Invergordon to John o' Groats)

London Paddington to Newton Abbot (London Paddington to Warminster, Salisbury to Castle Cary, Taunton to Minehead, Lynton and Lynmouth to Exeter, Exmouth to Newton Abbot)

Great British Railway Journeys Goes To Ireland as Michael returns to the Republic of Ireland and Northern Ireland for a second time, travelling from Killarney to Galway (Killarney to Cobh, Charleville to Waterford, Kilkenny to Athy, Newbridge to Roscrea, Athlone to Galway)

Michael shares his vast knowledge with such enthusiasm for those who not only have a passion for trains but also a desire to further understand our great heritage. Great British Railway Journeys is not just about the trains or going from station to station, it’s the picturesque locations, the history and the information shared that makes this show a treasure trove of educational family entertainment.

Great British Railway Journeys Series 4 will be released on DVD by FremantleMedia International on 27th January 2014. Great British Railway Journeys Series 1, Series 2 and Series 3 are available to buy now.