Imagine turning eighteen in Britain in 1943, expecting a uniform and a rifle, and instead being handed a pickaxe and steel-capped boots and sent down a coal mine. That was the fate of nearly 48,000 young men known as the Bevin Boys, conscripted for civilian labour in the pits rather than the armed forces. This episode draws on Ministry of Labour records, personal diaries, and 1940s economic data to explain how Britain, entirely dependent on coal for steel, railways, shipping, and the electrical grid, crippled its own energy supply by drafting its youngest miners into the army and found itself 36,000 workers short by mid-1943, with absenteeism above 14 percent and strikes spreading.

With volunteers virtually nonexistent, Minister of Labour Ernest Bevin introduced mandatory conscription in December 1943, selected by a secretary drawing a single digit from a hat each week. The episode follows the boys through six weeks of crash training, shafts a mile deep, two-mile crawls to the coal face, methane and cave-in risks, and pay of 44 shillings a week, then back above ground, where police demanded their papers, strangers handed them white feathers, and pubs refused them service because they wore no uniform. Their release did not come until March 1948, and official recognition took until 1995, a veterans badge until 2008, and a memorial until 2013.

• Why full employment in a total-war economy meant higher wages could not fix the miner shortage
• The lottery: how a digit pulled from a hat decided who went underground
• The 143 men who chose prison over the pits and the teenage walkout at Doncaster
• Why the government refused to issue an identifying badge and how the public confused the boys with conscientious objectors
• Famous Bevin Boys including Eric Morecambe and Peter Shaffer, and a Kilkenny stone memorial that darkens like coal