QUEST HD

How do they grow enough vanilla to make the world's favourite ice cream flavour? How are anchors for huge ships built? How are 12 million lighters made every year.

How do they craft footballs for the National Football League? How do they farm mussels? How do they design the ultimate fighter pilot's helmet.

How are powerful Scania trucks built? How do they use the world's biggest DNA database to solve crime? How is paraffin used to make Gouda cheese.

How do they make the finest classical guitars? How do they keep the blades turning on a wind turbine? How do they produce America's ultimate mowing machines.

The Dodge SRT-10 is considered a 'halo car' - the classic worker's truck has a supercar-engine in it. However, this brutish vehicle needs some serious work.

Mike finds what he thinks is the finest-handling front wheel drive car: the Lotus Elan M100. If Ant can revive the engine and suspension, will it make a profit.

Henry and Fuzz visit Angie and Jon in Bucks and uncover a Francis Barnett and vintage Raleighs. Can they revive them and turn a profit.

Henry and Fuzz visit Ross in Hampshire, where they uncover a Nuffield tractor and sheds packed full of tractors, memorabilia, and more hidden gems.

Find out how prams, factory-build homes, wood flutes, and bicycle tyres are made.

Find out how thinning shears, wagon wheels, toaster pastries, and violin bows are made.

Jay Blades enlists the help of clockmaker Steve as he renovates an 85-year-old steam roller. Another expert demonstrates the art of cutting glass.

Drew's business has expanded so he needs twice as many items! He visits a quirky house in Suffolk, to discover a barn full of salvage from around the globe.

When other businesses move with the times, Drew sees a chance to buy their unwanted stuff. In Essex, he finds a rare 1930s desk from a closing department store.

Permit delays ruin the Poseidon Crew's hopes of a massive payday on their famed ground. A torrential downpour forces Shane and Russell to evacuate their dig site.

Jacqui and Andrew are targeted by potential gold thieves. Marcus and Linden hunt ground close to the site of the biggest nugget ever found in Western Australia.

Isaac from the Opal Whisperers works an abandoned, dangerous mine. The Mooka Boys are confronted by an irate miner as they peg a claim too close to his mine.

The Bushmen's drill rig loses a vital pin, forcing 74-year-old Les to undertake repairs four meters in the air. The Digi Diggers flooded mine wall collapses.

Jay Blades enlists the help of clockmaker Steve as he renovates an 85-year-old steam roller. Another expert demonstrates the art of cutting glass.

Henry and Fuzz visit Andrew in Warwickshire, where sheds overflow with all manner of bikes, cars, and automotive memorabilia.

The guys visit Hampshire, where a shed full of motorbikes leads them to a rare Yamaha Maxam, but getting it going again proves trickier than expected.

Henry and Simon are in Buckinghamshire to visit a repair shop. Henry finds a table that is perfect for an imaginative project he's been planning for a while and a club fender.

In Scotland, Angus and the team clear out an attic filled with Ferrari memorabilia. How much will this incredible collection make at auction.

In the seaside town of Filey, Angus and the team help a couple clear out their home. Angus sees potential in some vintage toys and boxes of old soap.

Antiques experts James Braxton and Catherine Southon embark on the last leg of their journey. Who will be victorious at the final auction in Bourne.

Charlie Ross and Izzie Balmer begin their hunt for antiques in Stow-on-the-Wold. Izzie buys a toast rack, while Charlie eyes a military first aid kit.

Huge Bids For A Rare Collection. Angus uncovers a loft stashed with bizarre but highly valuable collectables. Plus, a set of rare stamps deliver a big cash windfall at auction.

Angus clears a home of classic books to fund a trip for a widower, before the discovery of an unusual violin hits the high notes at auction.

Irita helps a grieving daughter clear her late father's collection of antique bottles. Then, she helps a retired couple fund a holiday of a lifetime.

How can lifeboats hold up to 150 people? How can mind control techniques help golfers improve their shots? How do they make millions of celebratory stamps.

How do they produce tequila from cactus plants in Mexico? How does New York City run on steam? How do they produce soft ice cream.

How do stuntmen survive a bad day at work? How do they mine precious amber gemstones? How do they build Seabreacher watercraft that move like dolphins.

How is NYC supplied with the finest steaks? How do they produce the ultimate surround sound home cinema systems.

Mike is excited to pick up one of his favourite types of convertible: the 2000 Porsche 996. With only a few issues, this car will be an absolute steal for him.

Mike finds a 1970 VW Flashback that needs some love and attention from Ant to be roadworthy again. If they can finish the upgrade on time, will they make a profit.

Henry and Fuzz visit Andrew in Warwickshire, where sheds overflow with all manner of bikes, cars, and automotive memorabilia.

The guys visit Hampshire, where a shed full of motorbikes leads them to a rare Yamaha Maxam, but getting it going again proves trickier than expected.

Find out how bathtubs, Hopi Kachina dolls, mine truck engines, and memory cards are made.

More everyday items are put under the microscope, with a closer look at out how cycling shoes, yurts, marine plywood, and encaustic paint are made.

Clockmaker Steve restores a grandiose clock to its former glory. However, there is drama when a key part is damaged upon arrival.

Drew is in Belgium on a continental buying adventure. He visits the flea market in Tongeren and meets a renowned dealer who lives in a huge chateau.

Drew heads to Holland where, thanks to its thriving antiques markets, he can find the kind of unique pieces he's renowned for - including his dream car, a vintage Bugatti.

The Poseidon Crew finally start digging legendary ground in search of a multi-million-dollar nugget. Shane and Russell endure the snake-ridden wilderness in Pilbara.

A robbery at the Gold Retrievers' camp puts more pressure on Chris and Brad's partnership. Marcus and Linden finally hit a rich patch of nuggets.

The Bushmen struggle to locate the source of water flooding their mine. The Misfits are forced to work Issy's mine Honey Hole as they wait for bulldozer repairs.

The Bushmen bring in a master opal cutter, hoping to transform rough stones into a $100,000 haul. Sofia and Isaac are threatened by a mine roof collapse.

Clockmaker Steve restores a grandiose clock to its former glory. However, there is drama when a key part is damaged upon arrival.

Henry and Fuzz visit Duncan in Wiltshire, where they uncover a mighty vintage diesel road roller hidden amongst sheds packed with farm machinery.

Henry and Fuzz visit Rob in Shropshire. They uncover a Matchless G3, tin signs, and a BSA mower in a shed that is Henry's idea of heaven.

Henry and Simon visit a workshop full of bikes and cars. Henry is excited to find a Yamaha RD350 motorbike, while Simon finds a paraffin Tilley lamp he can update to electricity.

Angus and the team are in Derbyshire to help a widow clear out her home. They uncover a riding crop, a 19th century stool and a jewellery collection.

In County Durham, Angus and the team clear out a huge aviation collection. Later, they help a retired policeman sell items from his four-bedroom home.

Izzie Balmer and Charlie Ross hunt for hidden gems in Gloucester. Plus, Izzie learns about the incredible story of Britain's first female astronomer.

Izzie Balmer and Charlie Ross continue their road trip in Hartley Wintney. Charlie buys a cut glass sugar shaker, while Izzie eyes three bronze pigs.

Henry and Fuzz head to Northamptonshire to look around Louis' palatial shed which is filled with motorbikes and some tempting automobilia.

Henry and Fuzz visit Graham's collection of Land Rovers, motorbikes, and tractors in rural Shropshire. What will Henry and Fuzz take home to restore.

Failing to find opal, The Mooka Boys embark on a risky mission at night. The Bushmen use a robot dog to help map out their underground mine.

In Sydney, Michael and Max take the plunge for sunken treasures. Warren and Colleen detect an old sports ground west of Brisbane.

How is viscose transformed into clothing and cloth? How do they produce the world's favourite fizzy drinks? How do they make traditional English snuff.

How do they build the world's most expensive cable cars? How is vodka produced from grass? How do social networks connect people around the world.