Discovery+1

In Bethel, construction crews race to finish Era's newest hangar before the winter snow comes. But when impatient Jim flies in to inspect the progress will he be happy.

With the first winter storm just days away, the Raney clan rush to seal in Misty's cabin. But a devastating fire threatens to derail their plans.

Joe and his crew tackle a unique request - turn a salvaged red '51 Chevy 3100 pickup into a roadworthy, Christmas-parade spectacle.

The Bronco's owner is unsure about Dave's radical idea for the interior. He has to make his client happy but resist going too far with this build.

The talented team are called to restore a man's '69 Dodge Daytona. The owner is unwell and fixing the car would be the perfect way to brighten his mood.

August 4th is a historic day: It is the day Jesse Owens humiliated Hitler and Fanny Blankers-Koen demolished prejudices about gender and motherhood.

Kaiela leads her team on a punishing trek that puts her challenge at risk. Adam and Heather's smouldering tension makes the new camp choose sides.

As the crew explore the cavern, they are overcome by a deadly and invisible gas cloud. It'll take a complicated rescue mission to get them out alive.

August 4th is a historic day: It is the day Jesse Owens humiliated Hitler and Fanny Blankers-Koen demolished prejudices about gender and motherhood.

Kaiela leads her team on a punishing trek that puts her challenge at risk. Adam and Heather's smouldering tension makes the new camp choose sides.

More everyday items go under the microscope, revealing their production. How are objects including Formula F race cars made.

More everyday items go under the microscope, revealing their production. How are objects including vacuum excavators made.

A new deckhand falls ill on the Time Bandit, raising questions for Andy. Captain Rick deals with a severe crew injury and Wild Bill's plan A fails.

The Roman Empire built Hadrian's Wall to guard its frontiers; new discoveries reveal who the Romans were trying to keep out with this 72-mile-long megastructure.

Bruce searches land, sea and skies in a mission to settle the score on whether the Allies or the Nazis were truly the most advanced side of the Second World War.

Joe and his crew tackle a unique request - turn a salvaged red '51 Chevy 3100 pickup into a roadworthy, Christmas-parade spectacle.

Mike Brewer and Marc 'Elvis' Priestley help farmer Tom trade up an old Jaguar and a tractor to a DeLorean. But with a £30,000 price tag it won't be easy.

Car dealer supremo Mike Brewer and mechanic Marc 'Elvis' Priestley help police officer Deepak trade up his Nissan Juke to a stylish Porsche Cayenne.

A communications shutdown leaves a train, hauling the biggest load ever moved on the Alaska Railroad, hurtling towards a 'dead zone'.

In Alaska, the spring thaw puts the railroad into meltdown mode and a freight train is stalled on the line's highest bridge by the infamous Hurricane Gulch.

Dave Turin visits the Carolinas to visit America's rarest, most valuable gold. He meets ingenious everyday miners, a moonshiner, and a gold nomad.

Yuri is training to fly a 208 Caravan in Bethel, but when heavy ice forms on the wings will it blow his chances? Plus, Jim welcomes a greenhorn to the crew.

An inferno engulfs Marty and Mollee's cabin at the onset of winter, and the Raneys rush to complete the unfinished clifftop cabin with heat, water and power.

Rad Red Christmas Truck Part 2. Joe and the team put the final touches on the '51 Chevy 3100, transforming it into the Christmas-parade truck it was born to be.

While not the most popular model, the Fox Body Mustang is actually making a comeback, and the one that rolls into the shop needs a lot of love.

Parker discovers a potential $1.5 billion payday in Serra Pelada, but first, he needs to strike a deal with the local owners.

Mark and Digger invent a patriotic corn whiskey. Accident-prone Josh returns to the safety of his home, only to crash his minivan into his own house.

Why was Palmyra built in the Syrian desert and how did its inhabitants survive? Years after its destruction by ISIS, experts return to the site.