INFAST US

Following one of the best MTB riders and trail-builders on the planet during a trip in Alaska, one of the most remote and wild places in the world.

The world's best Brazilian rider opens the doors to his house to show how it all started and brings us to Mexico for the most famous urban race in the world.

In an "Ultimate Rider" first, the rookies race side by side against each other in pairs; the pressure mounts as the judges decide there will be a surprise elimination.

Dirt tracker, Brayden Elliot, is very nervous about his first jump; motocross rider, Ryan Mitchell, joins the rookies to give them a class "Jumps" and "Berms.".

Hungarian Gymkhana champion Nikolett Szanto balances her racing career with her day job.

Dmitrij Sribnyj reveals his life story for the first time, from his evacuation during the 1986 Chernobyl nuclear disaster to becoming a four-time Gymkhana Grid champion.

Nik tests the 2021 Toyota Land Cruiser; Mike explores the 2021 Kia Telluride; Nik showcases the 2021 Hyundai N Line; Nik is blown away by the new Kia K5.

Nik showcases Mercedes-Benz's screen innovation; Mike loves the 2021 Kia Seltos; the two enjoy driving cool cars like the 2021 Corvette Stingray; Nik praises the 2021 Toyota Venza hybrid.

Eight world-class drivers journey to South Africa to compete in the world drifting championship event.

The rookies sweat it out in a grueling series of fitness challenges; Team Davison turns up the heat and wins 3 out of 3 challenges.

Following drag racer Jndia Erbacher who strives to become the fastest women on Earth.

The record attempt is only one week away and everything seems to be on track, until the results of a dyno test put a spanner in the works.

The Beast from the East descends, covering parts of the UK in a blanket of snow and ice and bringing some of the country's busiest roads to a standstill; phones ringing off the hook at as scores of drivers are left stranded on Britain's roads.

A heavy loader carrying cardboard bales tips onto its side; the quaint rural roads of Staffordshire are seemingly no match for former army boy Jim; on a Midlands mission, snow threatens to leave rescuer Mark stranded.

When a fully loaded HGV rolls over on the A6, Fluff and his team need to create a second mess to solve the first; Jim is sent to recover a broken down truck from a waste tip facility.

Marcus Charman and colleague Trigger patch up an HGV's fuel tank during evening rush hour, Tez resorts to using a blowtorch to fix a car transporter's snapped spring, and a broken down driver gives out the wrong location.

The Warden's day starts early with an opportunity to capture a convicted game violator.

The Wardens are called in to round up a 1,000 pound bully.

Region one wardens come across a squatter on public land that leaves them speechless; region five wardens are on high alert at the annual Yellowstone River Boat Float.

Birds, bucks and missing licenses.

The brothers traverse the country's interconnecting network of waterways by ferryboat; from shrimp baron to peasant fishermen, temple ruins to anonymous chai wallahs, they make their way to Kushtia, home to the shrine of Guru Lalone Shaw.

Securing special visas, the brothers get 10 ponies and 6 porters and undertake a stunning, but difficult 13-day pony trek over the Himalayas to the valley of Mustang where they will try to have a sitting with the king.

The Eagar brothers fly a bush plane to Newfoundland's remote tip; they kayak between fishing ports on the island where they were born, heading toward their final destination.

A call comes in from a farmer whose fields have been visited by a flock of 300-400 geese; Stefanie, her dad Dennis and her oldest son Gabriel go on an early morning to go regulate the numbers and get the geese off the farmer's field, saving his crop.

The crew hopes to let the arrow fly on a fallow deer that will be cooked the day after in Copenhagen Zoo.

Danny hunts for duck in Venice.

Mette is a personal trainer and a hunter; the crew picks her up at her gym in Copenhagen then cross the bridge over to Sweden. the crew joins Claus from Hikmicro to test out some of the latest night vision scopes.

Ash heads into the desert to meet up with Wu Xinlei, who is a survival expert; he's hoping to understand what it would have been like for the people who built The Great Wall in this remote and punishing landscape.

Ash enters the final stretch of his journey along the Great Wall of China; after observing the building techniques used, he heads into the Gobi Desert to visit Crescent Lake, an oasis nestled between sand dunes.

After meeting an old friend from the Chu Great Wall, Ash visits some stone structures, both natural and human-made, at Yardang National Park and Xiaofang City; with one final phone call home, it's time to leave The Great Wall of China.

Chris and Casey Keefer eye a giant bull.

Chris and Casey Keefer get one last chance at an Alaskan moose.

Brothers Chris and Casey Keefer pour through video submissions before choosing a deserving duo to join them in Alaska; the hunters meet at the airport for the first time. Casey and Kaid are Dropped, while Chris and company get hung up at the hangar.

The Alaskan weather relents long enough for Chris and Kaid to reach their destination, and land some food; Casey and R.L. set up camp the day before moose season.

Follow Eric Hanson on his adventures heli-hiking, caving and backpacking through the backcountry around Banff and Lake Louise.

Eric Hanson heads down under to explore the Larapinta Trail and Kakadu National Park.

Eric Hanson goes off the beaten path as he hikes from one remote village to the next through Fiji's mountainous landscapes.

Eric Hanson explores the world-renowned Abel Tasman National Park by foot, and by sea kayak.

Bill first visits one of the greatest deserts in the world and finds out how the creatures and plants survive, and even thrive, in the harsh conditions; then he seeks, and hopefully finds, the mythical unicorn.

Mark and Royal set out to pick up a Dodge Power Wagon that uncovers many old memories; Dave and Allysa prepare to build out the center console for the 1967 Hemi GTX convertible.

Mark micromanages Will as he attempts to prep and prime the 1970 Cuda; last-minute changes threaten the installation of the convertible top for the 1967 Hemi GTX.

In a game of off-road racing, rock crawling and desert racing, Team Indiana, known as the underdogs of Ultra4, take the fight straight to the enemy.

Jay Callaway's racing career is on the line in one of the toughest technical East Coast races of the series.

Wayland Campbell and Levi Shirley go head to head leading to the championship, but there is an outsider, two-time champion Randy Slawson, to never underestimate.

Leaders Wayland Campbell and Levi Shirley push each other to their limits while other top drivers show just how fast 4x4 off road racing has become.

After five weeks of tough competition, the leader board is tight, with only one point separating the top four rookies; the rookies face their most physical challenge yet with a beep test.

Things get serious with a Super Motard challenge, designed to test the rookie's dirt, road and motocross riding skills; the judges have a new rule up their sleeves that will change the game.

Only three rookies remain in the fight for the title of The Ultimate Rider, and the $20,000 dollar cash prize. But first the rookies will have to complete four timed laps of the entire road track. The fastest single lap time, will win.

Racing Driver Arie Luyendyk Jr. challenges kickboxer Rico Verhoeven and soccer player Sol Campbell to see who is the fastest around the track.