National Geographic Channel

'S2/E4 - Crop Circles'. Usually dismissed as hoaxes, thousands of crop circles have been reported around the world. Could they really be messages from another world?

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

'S2/E2 - Breaking New Ground'. The homesteaders race to finish their pre-season tasks before winter sets in.

'S4/E2 of 2 - Engineering Marvels'. Unique aerial footage reveals some of Europe's impressive engineering feats.

'S1/E2 - The Amazon: Deadly Creatures'. Will Smith ventures into the Amazon in search of deadly creatures.

'S3/E1 - Croatia's Coastal Adventure'. Chef Ramsay discovers hidden culinary gems of the untouched peninsula of Istria, Croatia.

'Life Below Zero: Port Protection Alaska. S7/E2 - Packing Heat'. Carl hunts a deer, Troy dives, and Curly and Veronica embrace danger.

'S1/E1 - Coke And Cash'. AMO seizes over 280 kilos of cocaine and $750,000 from smuggling vessels.

'S3/E27'. Learn just how many ways there are to injure and humiliate yourself when attempting a jump on a mountain bike, cornering a long vehicle or trying to use a cardboard box as a toboggan.

'S3/E28'. In this episode we learn just how many ways there are to embarrass, injure and humiliate yourself when parking a boat, attempting a rail grind on a bike or simply popping a balloon.

'S3/E29 of 32'. In this episode we learn just how many ways there are to injure and humiliate yourself when skiing, operating a digger or attempting stunts on a motorbike.

'S1/E13 - Idiots Take Flight'. Richard Hammond explores the potential to embarrass, injure and humiliate yourself when pole vaulting or just rolling down a hill in a trash can.

'S1/E14 - Wall Running Face Plants'. Richard Hammond explores the potential to embarrass, injure and humiliate yourself when abseiling, running up walls or flying with a jet pack.

'S2/E6 - Secrets of The Pyramids'. Archaeologists excavate the ancient landscapes of Saqqara, Egypt's oldest necropolis, to reveal the mysterious origins of the pyramids.

'S3/E1 - Croatia's Coastal Adventure'. Chef Ramsay discovers hidden culinary gems of the untouched peninsula of Istria in Croatia.

'Life Below Zero: Port Protection Alaska. S7/E2 - Packing Heat'. Carl stalks a deer. Troy braves the cold water on a dive. Curly and Mary tear down a dangerous structure. Veronica tries her first solo tree falling.

'S4/E4'. Remnants of colonisation attempts, a revolutionary refugee ship, and submerged subway cars reveal hurricanes' impacts on America's past and its future.

'S1/E1 - Coke And Cash'. Fajardo AMO seize a boat with over 280 kilos of cocaine, Mayaguez agents transport a double murder suspect, and USVI agents seize 750,000 dollars from a smuggling boat.

'S19/E7 - Atlantic Ditching'. When a helicopter carrying offshore oil workers crashes into the ocean off of the coast of Newfoundland, a far-reaching investigation reveals a fatal flaw.

'S4/E5'. The mysterious sinking of Australia's 'Titanic', a warship on a dangerous mission, and a ROV expedition searching for clues at the bottom of the reef.

'S2/E7 - Death of The Pyramids'. Archaeologists hunt for clues to explain the abandoning of the pyramids - they unearth tactics used to protect mummies and find a 4,000-year-old tomb.

'S2/E5 - Kayaks And Dirt Bikes'. A standing jump may seem simple but turns into a nose dive, while planking and wheelchair wheelies cause serious damage when there is a shift in the centre of mass.

'S2/E6 - Surfing And Sand And Walking In Heels'. Revisit your childhood watching others climb trees and play leapfrog, amateur sand surfers try to overcome friction and avoid eating sand, and is there a perfect punch?

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

'S2/E2 - Breaking New Ground'. The homesteaders race to finish their pre-season tasks before winter sets in.

'S3/E2 - Incredible Iceland'. Gordon visits Iceland's west coast to discover ingredients and cooking techniques that utilise the Land of Fire and Ice's native volcanic landscape.

'Life Below Zero: Port Protection Alaska. S7/E3 - Still Icy'. Winter continues to pummel Port Protection and some venture out to find food for their families. Carl spots a buck in his crosshairs.

'S1/E2 - Cocaine Run Aground'. Air and Marine Operations and Homeland Security Agents combat the global cocaine trade and criminal networks that operate throughout the Caribbean.

'S19/E8 - No Warning'. A turboprop crashes into an Indonesian mountain, and while three systems could have prevented it, investigators must figure out why none of them did.

'S2/E2 - Full Throttle Traffickers'. The Dutch Caribbean Coast Guard intercepts drug smugglers at full throttle.

'S25/E3 - A Perfect Storm'. Nuremberg Flight 108 breaks apart while trying to land at Düsseldorf airport.

'S1/E4 - The Oil Well Murder'. DNA detectives attempt to identify a victim of homicide in Canton, Ohio.

'S2/E5 - Hitler's Henchmen'. This is the story of Himmler and Goebbels, the two men tasked with building the largest social megastructure of Nazi Germany.

'S5/E6 - Snitch Cities'. Police turn to confidential informants to hunt down the mobile dealers in Minneapolis and Saint Paul who deal some of the purest heroin around.

'S2/E5 - Bermuda Triangle'. Find out why scientists are intrigued by a mysterious area hovering just above Earth that has similar properties to the infamous Bermuda Triangle.

'S2/E2 - Full Throttle Traffickers'. The Dutch Caribbean Coast Guard intercepts drug smugglers at full throttle.