National Geographic HD (Pacific) The hidden secrets of the Nazis are revealed when the oceans covering them are drained using CGI animation. 2026-08-13 Draining the ocean reveals the Gulf of Mexico's most deadly secrets. 2026-08-13 The hidden secrets of World War I's most powerful weapons are revealed by draining the North Sea. 2026-08-13 The Ring of Fire is an area in the Pacific Ocean where volcanoes, earthquakes and tsunamis form; the ocean is drained to reveal the geological forces behind natural disasters and to uncover threats along the coast of Seattle, Tokyo and New Zealand. 2026-08-13 Royal cures, ancient disease and early surgery reveal medicine's darkest hopes. 2026-08-13 Macabre cures, toxic tonics and Mayan healing rituals reveal medicine's wild past. 2026-08-14 Learn about China's immortal emperor, a rebel scholar and the Black Death. 2026-08-14 Ancient clues reveal bold dentistry, hospital secrets, and an arcane prosthetic. 2026-08-14 Strange stones, electric catfish and ancient cannabis reveal healing's hidden past. 2026-08-14 A toxic healing cup, Roman medicine and lost secrets of China are explored. 2026-08-14 Grim sea cures, ancient surgery and toxic remedies reveal medicine's extremes. 2026-08-14 Roman spells, stone-carved cures and fossil relics blur medicine and magic. 2026-08-14 Bloodletting barbers and star-reading physicians are medicine's ancient roots. 2026-08-14 Roman remedies, ancient opium and Stone Age surgery rewrite medical history. 2026-08-14 Strange stones, electric catfish and ancient cannabis reveal healing's hidden past. 2026-08-14 Ancient clues reveal bold dentistry, hospital secrets, and an arcane prosthetic. 2026-08-14 Learn about China's immortal emperor, a rebel scholar and the Black Death. 2026-08-14 A toxic healing cup, Roman medicine and lost secrets of China are explored. 2026-08-14 Paid programming. 2026-08-14 Regain independence and enjoy greater mobility with the compact design and long-lasting battery of portable oxygen. 2026-08-14 Paid programming. 2026-08-14 Paid programming. 2026-08-14 Celebrate America's 250th with the 2026 U.S. Mint Silver Proof Set, certified perfect NGC PF70 with the official America 250 logo; includes 10 proof coins, one-year-only designs, fine silver issues and CSN exclusive numbering. 2026-08-14 Trusted brand Jacuzzi Bath Remodel and interior designer Christina Hall share their secrets on how you can easily and affordably transform your bathroom into a gorgeous custom, safe, stylish space in 1 day! Call for a FREE quote & installation. 2026-08-14 Mariana goes on a mission to understand how personal and financial data is stolen and sold by a shadowy network of hackers and thieves. 2026-08-14 Mariana investigates underground fight clubs and the push to bring bare-knuckle fighting into the mainstream. 2026-08-14 Violent crime soars in Los Angeles to levels not seen in 30 years; Mariana journeys into gangland to understand the violence plaguing the city. 2026-08-14 Mariana exposes the dangers of the growing and deadly ghost guns industry. 2026-08-14 Mariana van Zeller investigates a dark and very elusive black market, the illicit trade in human organs. 2026-08-14 The unforeseen arrest of an American in Pakistan threatens a secretive mission in CIA. 2026-08-14 A former CIA chief of base utilizes her knowledge in a volunteer effort to rescue people during the 2021 U.S. withdrawal from Afghanistan. 2026-08-14 A young CIA officer is kidnapped at gunpoint and held in isolation, turning a routine exchange of intel with a source into a potential 24-hour crisis. 2026-08-14 For a CIA officer trying to recruit spies during a conflict in the Middle East, it can be hard to trust a mole within the al-Qaeda network, but it's even hard to keep him alive. 2026-08-15