Nat Geo+1 Underground Cities and Secret Chambers: From underground churches to carved sacred chambers, hidden sites show how ancient communities created refuges for faith. (S1, ep 1) 7+ 2026-06-10 Seconds from Disaster. Looks at the 1999 Paddington train crash. Who was at fault? And could the devastating collision that killed 31 people have been avoided? 7+ 2026-06-10 Fatal Approach: A minor electrical problem sparked a catastrophic chain of errors that caused KLM Cityhopper Flight 433 to crash en route from Amsterdam to Cardiff. (S18, ep 3) 2026-06-10 France: In 1944, the Allies stormed Normandy to take Hitler's Europe, while France endured the devastation of total war on its own soil. (1 of 4) 2026-06-10 Belgium and the Netherlands: Colourised footage and eyewitness accounts show the price paid by troops and civilians to liberate Belgium and the Netherlands from Nazi rule. (2 of 4) 2026-06-10 Liu Bowen, Ceasar's Soothsayer, Alloa Tower: Liu Bowen lends his talents, Julius Caesar receives a chilling divination and the noble Erskine family receives a prophesy. (S1, ep 3) 7+ 2026-06-11