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How do they farm the expensive spice saffron, how do they create giant roads made entirely from ice and how do they manufacture a muscle car.

How do they turn trees into toilet paper? How do they make absinthe and how do they make cricket balls tough enough to face batsmen.

How do they cultivate green salad on scorching desert plains, how do they make rigging for ships and how do they produce lifesaving insulin from bread.

How do they build one of the world's most powerful locomotives? And how do they turn cows' milk into clotted cream.

On a trip to Sheffield, Drew tries to agree a deal on some incredible industrial pieces. Later, he checks out a collection of unusual hunting artefacts in Ludlow.

In Newcastle, Drew goes on a spending spree to replenish his stock of Victorian furniture. Then, he tours a grand but neglected estate to uncover any hidden gems.

Martin visits a client to collect a 19th century Louis Vuitton trunk for restoration. And Drew enlists Ruth to restore a stunning Italian giltwood lantern.

Car engines, flour, recliners and envelopes. More everyday items are put under the microscope as we discover how they're made.

Find out how plastic cutlery, special effects make-up, gold, and harps are produced, as more everyday objects are put under the microscope.

Alex, Nick, and Ruth team up to restore a very expensive Georgian table. Unholsterer Craig has difficulties fixing up a mid-century classic design.

Drew Pritchard and Alister Dryburgh uncover hidden gems, including a collection of vintage motorbikes and a new antiques shop in Devon.

Drew and Viki buy from new business ventures. They attend the opening day of an antiques fair and visit a brand-new antiques centre.

Mel and Alex explore dangerous old mine shafts looking for a new source of gold. Plus, the Heli-hunters race to stake a claim and finish their season.

Alan and Salty face the threat of bullets and crocodiles as they look for gold in the Cape York rainforest. The Brumbies race to beat the desert heat.

The Misfits return to their claim and find it's been soaked by torrential rain. The Opal Lovers dig a deep trench on their Digger's Gully claim.

The Opal Whisperers are on a mission to unearth something worthwhile from their newly excavated trench. Aging machinery slows The Bushmen down.

Fine art conservator Lucia brings a beloved painting back to life. Plus, Silversmith Brenton restores a pair of silver Shabbat candlesticks.

In the West Country, Henry and Sam find some sheds full of classic bikes and vintage cars. They even find a limousine once owned by Eva Peron.

Henry and Sam visit a fanatical biker in Yorkshire, who has the biggest collection of motorcycles they've seen so far. What bike will they come away with.

In the New Forest, Hampshire, Henry and Sam visit a collector of Americana. What rare bicycles and classic sportsters will they find in his sheds.

In the Midlands, Henry and Sam visit the sheds of a bike builder. He has a collection of rare bikes, but it's the surprise in his freezer that attracts the duo.

Henry and Simon head to the Lake District, where they meet a blacksmith with a large collection of old fairground rides and memorabilia, but that's not all they find.

Angus sells the treasures of an Abbey to fund the monks' retirement, and a motoring fanatic's cheeky sculpture sets pulses racing on sale day.

Angus hits the jackpot by shifting an avid collector's vintage slot machines and Raleigh Choppers, then helps find buyers for a local artist's works.

Steven Moore and Angus Ashworth are on the lookout for valuable antiques in Crossford. Plus, Angus visits a ground-breaking swimming club in Glasgow.

Angus visits a house packed to the rafters with vintage copper. Then he helps a couple clear their home before they relocate to Thailand.

A House Full Of Secrets & Silver. Angus clears a home in Liverpool and finds a fortune in the loft. In Yorkshire, a royal bodyguard's keepsakes could fund a creative escape.

Horologist Steve teams up with furniture restorer Will to piece back together a grandfather clock. And, silversmith Brenton works on a treasured magnifying glass.

A look at how products are manufactured around the world. Looking at sardine fishing, Piaggio scooters and erector sets.

A look at how products are manufactured around the world. Featuring plane painting, pasties and how clogs are made.

How do they cast bells fit for the world's greatest cathedrals? And how do they clear up the effect of one of America's biggest storms.

A look at how products are manufactured around the world. Featuring Titan Tires, espresso and how diamonds are cut.

Drew finds an impressive collection of antiques at an 18th century manor. Plus, he checks out a garden filled with more than 200 life-sized sculptures.

Comedian Johnny Vegas joins Drew on a special salvage road trip. They visit a collection of outsider art in Wigan and a warehouse full of illuminations.

Drew asks Steve to save a faded but valuable antique chest of drawers. Plus, Serkan enlists Ted to restore a bent and twisted armillary sphere.

Laminate flooring, frozen treats and detergents are put under the microscope to find out how they were made.

Decorative mouldings, commercial pulleys and hoses are put under the microscope to find out how they were made.

Engineer Bo gives an 80s classic, a Sinclair C5, a modern makeover. Globe restorer James takes drastic action to restore a 150-year-old masterpiece.

Drew and Al buy from sellers who share their love for country house antiques. They snap up an 18th-century chest of drawers and smokers' bow chairs.

Drew Pritchard and Viki Knott travel across the country, visiting incredible collectors who have collections of unusual, rare and historic treasures.

Shane and Kate try to escape the heat by working at night. Plus, a rich source of gold may have disappeared when the Gold Devils need it most.

Jacqui and Andrew must push through a hostile country to find gold. The Gold Devils rely on Paul's huge heap leach to save their season.

The Opal Lovers excavate old drives in search of red crystal opal. Plus, mechanical problems are once again giving the Mooka Boys a headache.

The Blacklighters are pushing for a big pay day. With weather threatening to halt their operation, the Misfits have to get crafty with their setup.

Horologist Steve brings a handmade grandfather clock back to life. Meanwhile, mechanical expert David works on an extraordinary moving toy.

Henry and Sam are in Lancashire, visiting a petrol head with a collection of vintage bikes and rare British and American four-wheelers.

In Oxfordshire, Henry and Sam find a shed full of different items. Sam has his eye on some model trains while Henry finds a vintage bike.

Henry and Sam rummage through a tractor enthusiasts heaven, sheds and fields full of old machines. Their attention is caught by an old vintage plough.

Henry and Sam find themselves down in the South West rummaging around another belting shed. There are so many things on offer they find it hard to choose.

Henry and Simon return to the Lake District, where Simon gets the idea of turning some old slate tiles into a mystery item. Meanwhile, Henry spots an old work bench to restore.

Caravan Or Paris? In Durham, Angus uncovers hidden riches in a packed collector's cottage. In Surrey, widow Sue sells a diamond bracelet to chase a Greek dream.

Angus turns air traffic controller to land buyers for an aviation fanatic's model collection and scoops his biggest ever haul of whisky bottles.

Steven Moore and Angus Ashworth scour the town of Belper for interesting antiques. Plus, Angus visits one of the oldest underwear factories in the world.

Foody battles to reach Bamaga by Christmas. Sludge returns to New Zealand to do a job for his mate Ricky. Mike Elliot and his son salvage car wrecks.

Jacqui and Kyle brave crocodile country to chase gold in the remote wilds of the Northern Territory. Brad McGhie faces a multimillion-dollar decision.

Sonnaz and Rachael revive a pair of chairs that are the owner's last links to her Dutch heritage. Plus, Will works on an army officer's military campaign chest.

A look at how products are manufactured around the world. Featuring the complex network of Paris sewers, Beretta's and cotton manufacture.

What is the secret of the lion dance, how are tunnels built, and what is a super sopper? Find out as more items are put under the microscope.