The seasoned broadcaster makes a triumphant return, this time embarking on a European journey to delve into the pivotal role of trains during the First World War. His exploration begins in Northumberland, where he hops aboard a meticulously preserved locomotive, unraveling the historical significance of railways in Britain's mobilization of troops and the establishment of expansive training camps nationwide. Commandeering a holiday train repurposed for the transport of troops and ammunition, Chris skillfully weaves the poignant tales of two contrasting soldiers—one English, the other German—both reliant on trains to reach the grim battlegrounds of the Somme in 1916. Through this narrative, the broadcaster sheds light on the shared experiences of those whose fates were entwined by the iron tracks of wartime railways.