High Street TV 4

Catastrophe strikes in the heart of Minnesota. In Denmark, a railway tragedy exposes a security breach that affects the whole of Europe.

Around the world, there are extraordinary building mistakes. Design teams and experts analyse what went wrong and how engineers are fixing them.

Patrick Gundersen's team tackles harsh terrain in the hunt for aquamarine. Plus, the Rubyvale Boys battle against mechanical malfunctions.

Newcomer, Neil Wilkinson Jr., abseils down a deadly mineshaft in search of cubic fluorite, while Jarrin and Hugh take the plunge into frigid waters.

Fisherman and adventurer, Jeremy Wade, is on an epic journey to catch a prehistoric monster - the man-sized pike in the lakes of Ireland. Will he find it.

Fisherman and adventurer, Jeremy Wade, travels to Lake Garda in northern Italy to investigate a 16th century monster fish. What secrets is the lake hiding.

Discover how rally cars, pork pies, floating fountains and artificial stone ornaments are made.

Discover how everyday items such as cufflinks, blueberry turnovers, dashboards and earthenware pottery are made.

More everyday items are put under the microscope as we discover how fly fishing reels, house paint, weaving looms and ice makers are made.

More everyday items are put under the microscope as we discover how graphite pencil leads, clarinets and special effects are made.

Richard's team work overtime to complete their first big restoration - a 1950s Alvis. Plus, they are under pressure to get their racing MGB fit for competition.

Where's All The Money? Richard must come up with a plan to raise emergency funds. And, the team enter their first race at Donnington Park, but engine problems threaten to derail the project.

Richard's business goes global after a call from an international car collector in Singapore. And, Richard helps his best friend Les fulfil a childhood dream.

Kuruman To Loeriesfontein. The town of Kuruman on the edge of the Kalahari Desert could be Henry Cole's final resting place only 750 miles into this 3,000-mile trek.

Loeriesfontein To Matjiesfontein. Henry Cole has had a couple of setbacks after two motorbikes blew up! He's now riding from Loeriesfontein to Matjiesfontein.

Henry Cole's South African adventure is nearly complete after being on the road for three weeks, after blowing up two bikes and facing huge setbacks.

Henry and Fuzz meet a lifelong biker with unique motorbikes. Fuzz discovers a 1950s step through scooter, but Henry prefers low-capacity sports bikes.

Henry and stand-in searcher Guy are in Wiltshire visiting collectors Adam and Dan who have an assortment of trucks, tractors, and rare American cars.

Henry and Fuzz are in Surrey visiting classic cars and tractor collector Ross. Will they go for a gangster-style Rover or a 1920s Renault saloon.

Henry and Fuzz return to Surrey to visit collectors Nick and Hollie, who have an incredible array of cars including a 1921 Rolls Royce Silver Ghost.

In Chelmsford, Henry and Fuzz visit Fiat specialist Tristan, who has 500s, 600s, 126s and a Fiat minivan that once starred in an Indiana Jones movie.

The boys are in Oxfordshire browsing through Dominic's restoration projects, including a Triumph TR4, a Jaguar XJS and a hotrod with a Rover engine.

In Hertfordshire, Henry and Fuzz meet Neil, who boasts a shed full of Japanese bikes, cars, and campervans. What will they come away with.

Henry and Fuzz meet collector extraordinaire, Alan in Norfolk. They search through rare Harleys, British bikes, hot rods and piles of automotive junk.

Henry and Simon head to Burton-on-Trent where they search through a petrol head's collection. Henry gets excited about a dump trump and a remote-controlled plane.

Henry and Simon are back in Birmingham to visit a couple who clear houses. The sheds are so packed the boys have to clamber across lots of junk to find their items.

The boys head to Llandudno, where they search through an old family business. Simon finds an old shelving unit and some nested tables, while Henry picks up an old work bench.

Henry and Simon visit Anglesey to sift through a garage full of automotive parts. Henry falls in love with an old petrol pump while Simon picks up a couple of baskets.

The boys are on Henry's home turf in Oxfordshire to visit another upcycler. In her collection they find an Anglepoise lamp, a chest of drawers, a portable stove and a sack trolley.

Steve brings in a vintage ticket machine which requires mechanical expertise. Meanwhile, an organ and toy mechanic works on an intriguing musical box.

A pair of sisters bring in a family bike that travelled around the world with them. Plus, a woman brings in a leather case that belonged to her great aunt for restoration.

A couple from Southampton bring in an antique toy from the Victorian era for restoration. Plus, ceramics expert Kirsten takes on a life size Bollywood mannequin.

A mother and daughter bring in a stuffed tortoise that has been in the family for 44 years. Plus, a woman brings in a chair that belonged to her mother.

Around the world, there are extraordinary building mistakes. Design teams and experts analyse what went wrong and how engineers are fixing them.

More everyday items are put under the microscope as we discover how air boats, onions, 3D metal printing and curved cabinet doors are made.

More everyday items are put under the microscope as we discover how retractable ballpoint pens, solar salt and tubas are made.

Simon and Max rummage through some old barns in Worcestershire. Max wants to put wheels on two air tanks, while Simon sees potential in some wooden crates.

Trying out some larger vehicles, the team test a plug in Hybrid VW T7 Transporter and match it up against a 7-seat PHEV SUV costing the same amount of money - the Hyundai Santa Fe.

JDV and Sid tackle some challenging terrain in a Land Rover P400E Defender. Vicki tries out the new MG EV4 and in Italy, Grace drives Ferrari's first V6, the 296 GTS hybrid.

Mike Wolfe and Frank Fritz travel all over America in search of the most interesting, rare and profit-bringing treasures, from old bangers to classic toys.

The Gold Gypsies' tenacity is rewarded with their biggest nugget of the season. Meanwhile, Jake's new plan to save the Dirt Dogs' season turns into a disaster.

Scrappers boss Alex Stead gambles his remaining cash on bigger machinery, pushing his marriage to the edge. And, the Victoria Diggers unearth a rare artefact.

The Boulder Boys drain floodwater in search of opals. Rod Manning is under pressure after using his wife's favourite opal ring as collateral.

The Blacklighters must relocate Opalzilla after their claim runs dry of opal. The Cheals hope to hit the jackpot in a bizarre structure, the Z-fault.

Henry and Fuzz find a rare custom IRIS Sporting Trials Car. It's irresistible for the boys who get to work returning it to its former glory.

Henry and Fuzz sail over to the Isle of Wight. They meet Vince, a fanatical collector whose sheds are bursting with British and Japanese bikes.

Henry and Fuzz are overwhelmed by Nick from Brackley's military collection. They leave with a vintage rarity, but will they find a buyer for something so unique.

The boys gallop to Newmarket, where they spot a cloche and a 'smoker's companion' table. In a barn, they find a pair of stylish '70s plastic chairs.

Simon and Max rummage through some old barns in Worcestershire. Max wants to put wheels on two air tanks, while Simon sees potential in some wooden crates.

Scott would love to own a VW Campervan to take his son on trips around their native Scotland. With Camper prices soaring, Mike and Elvis must be creative.

A mother and daughter bring in a stuffed tortoise that has been in the family for 44 years. Plus, a woman brings in a chair that belonged to her mother.

In Yorkshire, Henry and Fuzz uncover a 1951 Lea Francis Saloon: hand-built, elegant, and born in a time when motoring was a luxury.

Henry and Fuzz visit David's Derbyshire shed, a treasure trove of vintage mechanical gems, and uncover a wonderful Monet-Goyon motorbike.

Henry and Fuzz visit Richard's Staffordshire shed, uncovering an Excelsior and Mobylette as they dive into a treasure trove of two-wheeled gems.

Henry and Fuzz are overwhelmed by Nick from Brackley's military collection. They leave with a vintage rarity, but will they find a buyer for something so unique.

Henry and Fuzz rummage through David's hoard of Italian bikes in Norfolk. They're smitten by his Ducatis and his rare Mot Guzzis, but just what will he sell.

How do they extract iron ore from one of the most remote mines on the planet? And how do they make chandeliers that are fit for a queen.

How do they forge the blades to crack open oyster shells? Plus, how do scientists in a lab grow the synthetic diamonds of the future.