National Geographic Channel

'S1/E8 of 8 - Patrick Weninger'. A CIA officer must trust an al-Qaida mole and fight to keep him alive.

'S1/E5 of 10 - Concorde'. The story of Concorde, soaring through the sky faster than the speed of sound.

'S5/E7 - Inside America's Militias'. Mariana investigates the growing influence of heavily armed militias.

'S1/E5 of 6 - Germany'. Embark on a thrilling journey through Germany's greatest feats of engineering.

'S1/E2 of 8 - Winter Is Coming'. The NWS homesteaders race to finish their projects before winter fully sets in.

'S4/E5 of 10 - Blow Overboard'. AMO agents in Puerto Rico chase a fleeing boat carrying $2.5 million worth of cocaine.

'S2/E9 of 20 - Paws And Hoofs'. This Science of Stupid episode is dedicated to cats and other friends who prove that although they lack opposable thumbs, they fare quite well when measured against humans.

'S2/E10 of 20 - Sports'. Dallas Campbell uses the ruler of science to measure what separates a champion from a looser in legendary sports like basketball, volleyball and newer stuff like street luge.

'S8/E3'. In this episode we examine inflatable slides, swing burpees and the kite surfing roll.

'S8/E4'. In this episode, we examine ski backflips, carbonization and walking downstairs on your hands.

'S1/E1 - United Kingdom'. This film reveals the secrets of the UK's engineering wonders.

'S1/E2 - Spain'. Embark on a thrilling journey through Spain's greatest feats of engineering.

'S1/E3 - The Netherlands'. Dive into the awe-inspiring world of Dutch engineering.

'S1/E4 - Nordics'. Explore the engineering wonders of Europe's lands of ice and fire.

'S1/E5 - Germany'. Embark on a thrilling journey through Germany's greatest feats of engineering.

'S2/E5 - Kayaks And Dirt Bikes'. Tune in for flying cars, flying kayaks and flying dirt bikers! A standing jump may seem simple but turns into a nose dive.

'S2/E6 - Surfing And Sand And Walking In Heels'. Revisit your childhood watching others climb trees and play leapfrog. Amateur sand surfers attempt to overcome friction and avoid eating sand.

'S2/E7 - Biking Downhill and Balancing on Balls'. Science experts reveal exactly how and why adventure can turn into misadventure.

'S2/E8 - Ice Buckets And Kayaks'. Sliding down a hand rail on a staircase means you end up on the ground. And Ice-bucket challengers take a hit to the head.

'S1/E8 - Egypt's Lost Wonders'. The Nile was once home to the Ancient Egyptians, one the of the greatest civilisations on Earth. Scientific data, combined with computer graphics, can drain the waters -

'S1/E7 - Mysteries of the China Seas'. The China Seas - the site of the largest naval battles in history, a 700-year-old mystery and technological wonders, both ancient and modern.

'S2/E3 - You Guessed It, Winter is Coming'. With winter around the corner, the homesteaders face a new set of challenges.

'S2/E4 - Plenty Below Zero'. The homesteaders work to survive and thrive in an unforgiving winter wilderness.

'S2/E5 - Winter Works'. The homesteaders take advantage of the conditions during deep winter.

'S2/E6 - Dog Days of Winter'. In winter's end, the homesteaders double their efforts as they wait for spring.

'S2/E7 - Spring Has Sprung'. As the weather warms, the homesteaders prepare for a new set of challenges.

'S2/E8 - Summerish'. Summer is around the corner, and the homesteaders switch into warm-weather mode.

'S1/E6 - Nighthawk'. The story of the F-117 Nighthawk, the world's first stealth fighter jet.

'S3/E4 - Hidden Flaws'. A Thai tower collapses, a Danish icon burns, and a deadly English wind destroys.

'Trafficked With Mariana Van Zeller: Compilations. S1/E1'. Go behind the scenes with Mariana van Zeller, as she reveals the most intense and unexpected moments from Trafficked.

'S5/E3 - The Tranq Dope Underground'. Mariana investigates the mysterious next wave of America's opioid crisis.

'S3/E6'. Prison is a constant battle between chaos and control. Holding that line is a team of highly skilled and experienced officers. Break the rules in prison, and the punishme

'S1/E12 - Russian Sub Rescue'. When a Russian mini-submarine becomes entangled in an old fishing net in the north Pacific, the race is on to rescue the crew before their dwindling oxygen supply runs ou

'S1/E6 - Nighthawk'. The story of the F-117 Nighthawk, the world's first stealth fighter jet.