Sky History2 The Mary Rose: Ross returns to training with dive master Neil Brock and explores the site of Britain's most famous wreck: the Mary Rose. (S1, ep 1) 2026-04-18 Nazi Menace: The quest continues in the Red Sea, a deeply personal journey given Ross' grandfather fought in the North Africa campaign during WWII. (S1, ep 3) 2026-04-18 Aliens in Our Airspace: Eerie encounters at 40,000 feet, accounts of UFOs taking control of aircraft, and jumbo jets disappearing. Is this proof of aliens in our airspace? (S15, ep 9) 2026-04-18 The Giants of Malta: Could the megalithic structures of Malta - and an underground complex housing otherworldly remains - be linked to local legends of alien visitation. (S15, ep 10) 2026-04-18 Cover-Up: Capture of a key Nazi uncovers shocking realities. Amid demands for accountability, as Vera and her team navigate murky waters to confront uncomfortable truths. (S1, ep 6) 2026-04-18 Runes: During his time in charge, Himmler made the study of runes - letters of ancient Germanic writing - obligatory for SS officers in the belief they held powers. (S1, ep 6) 2026-04-19