Disc.Turbo+1

How do they make giant floating power stations that provide power around the world? Plus, how do they fabricate the world's smallest aircraft.

How do they make batteries from brine? How do they build a tropical island from trash? And how are fragrances blended to create different types of scents.

Classic car expert Paul Cowland and builder-restorer Helen Stanley help buyers find their dream rides within their budget - from SUVs to high end sports cars.

Classic car expert Paul Cowland and builder-restorer Helen Stanley help buyers find their dream rides within their budget - from SUVs to high end sports cars.

Paul persuades Drew to buy a Triumph TR4 and he pays homage to one of his automotive heroes. The boys reinstate a stylish feature that never made it to production.

Henry and Sam are in Bodmin Moor rummaging through a collection built up over 25 years. It includes amphibious craft, motorbikes, nuts and bolts.

In Redruth, Henry and mechanic Sam are confronted with sheds filled with ramshackle contents, from Harry Potter's Anglia to a model canary-yellow Lamborghini.

Richard explores one of the world's biggest man-made engineering projects: the Kölnbrein Dam, which can hold back an incredible 200 million tonnes of water.

Derek finds himself a 1950 Ford 8N tractor. But with a cracked engine block, Derek will have to revisit his farming routes to make this implement operational.

Chad Hiltz makes an elegant one-of-a-kind coupe in his shop. He uses spare parts, recycled metal and a rusted out 1939 Studebaker Commander to build the car.

A 70s Revival. Ant has found an iconic VW Campervan that's been abandoned mid-restoration. The interior needs a full refit, plus a suspension overhaul.

In Texas, an oil refinery explodes. Flooding in Iowa destroys an important railroad crossing. What engineering mistakes caused these disasters.

Drew and Paul rescue a classic: a Vauxhall Viva. The car was extensively modified in the 1960s but after years in storage, it's well past its best.

The team fires the Ridler build for the first time, finishes an endless list of details and appointments, and loads the car for the trip to Detroit.

Mike and Elvis find and fix up a recently imported Fiat 600. It needs a lot of work, including a full repaint and an engine overhaul.

Presenter Henry Cole and motorcycle restorer Sam Lovegrove scour the UK's sheds for hidden vintage automotive treasures to fix up and sell on.

Henry and Sam are in the heart of Oxfordshire where they find rare Minis, 1970s Rollers, and a pristine rally car - but can they get her running.

At the Ridler tech test, Dave and Kev scramble to fix a transmission problem. When the show opens, they get their first chance to see the competition.

Dave and GT resurrect a farmer's 1977 Toyota Land Cruiser. Then it's love at first sight when they find a 1975 VWL-Bug 1600 that's had just one owner.

In California, a dam collapse causes chaos. In Massachusetts, the tallest library starts cracking. In Italy, a vital bridge comes crashing down.

Mike finds a BMW six-cylinder modern classic, the E46 M3, with the subframe already fixed. He challenges Ant to transform the transmission with new tech.

At the Ridler tech test, Dave and Kev scramble to fix a transmission problem. When the show opens, they get their first chance to see the competition.

Richard explores one of the world's biggest man-made engineering projects: the Kölnbrein Dam, which can hold back an incredible 200 million tonnes of water.

A 1956 Ford truck has been sitting in the barn for more than three decades. Joe and the team fix up this neglected vehicle with a hand-built custom frame.

Australia. Mike and Elvis find a 1970s classic VW camper in need of some mechanical TLC. Can they turn it into a long-range camper fit for the Australian wilderness.

How can steel repair itself? How do they create the world's most powerful bikes? And how is wood transformed into paper.

Find out how they make military helicopters, how they design metro systems and how they engineer artificial reefs.

A newly qualified driver has a monthly budget of £150 to spend on her first car. Helen and Paul help her pick out a stylish and practical supermini.

Artisan baker Chris wants to ditch his diesel Audi and use part of his pension to fund a dream upgrade. He's hoping for a sports car with lots of power.

Drew and Paul rescue a classic: a Vauxhall Viva. The car was extensively modified in the 1960s but after years in storage, it's well past its best.

Presenter Henry Cole and motorcycle restorer Sam Lovegrove scour the UK's sheds for hidden vintage automotive treasures to fix up and sell on.

Henry and Sam are in the heart of Oxfordshire where they find rare Minis, 1970s Rollers, and a pristine rally car - but can they get her running.

Richard joins the crew of one of the biggest moving objects on earth, the Marie Maersk container ship, on her continuous 28,000-mile voyage from Asia to Europe.

Derek finds a 1937 Chevrolet Deluxe that's been off the road for 20 years. But can it make the 150-mile drive to the General Motors headquarters in Detroit.

Chad Hiltz helps his friend James to build a promotional truck to help sell his cider business. The team uses a 1934 Desoto Airflow as the base for the new car.

Double Trouble. Ant buys two Jaguar XJS, hoping one can donate spare parts. But with brake problems and the gearstick floppy, are they just double trouble.

In California, a dam collapse causes chaos. In Massachusetts, the tallest library starts cracking. In Italy, a vital bridge comes crashing down.

Paul has paid just over £15,000 for an Alfa Romeo 2000 GTV that appears to be in great shape. However, Drew is horrified when he learns it's an automatic.

At the Ridler tech test, Dave and Kev scramble to fix a transmission problem. When the show opens, they get their first chance to see the competition.

Mike snaps up a Jaguar S-Type with 195,000 miles. After some repairs, the boys put it up against another model with just a tenth of the miles.

Henry and Sam are on the west coast of Cornwall. Sifting through 50 years of vintage vehicles, they find the first-ever Lotus Elan and a pre-war Sunbeam.

Henry and Sam are in Oxfordshire, checking out a shed full of oversized items. Henry likes a tractor in blue and Sam falls for a Midget racer in a hedge.

Chris gets behind the wheel of a WRX supercar, as he joins the grid in Spain on a quest to earn FIA championship points.

Chris is driving and jumping a vehicle unlike anything he has ever driven before -a monster truck. He has his hands full with the five-ton monster.

The guys unearth a rare 1958 Land Rover Series 1 in a shed full of junk. Then, they transform a 1972 Mazda Bongo van into a micro-home for millennials.

In California, a catastrophe cuts one of America's most vital highways in two. In Texas, a refinery explodes with deadly consequences.

Mike is in the Pacific Northwest, where he has tracked down a true 'barn find': A Volvo Amazon 122 with a rally heritage. Ant is tasked with making it roadworthy.

Chris gets behind the wheel of a WRX supercar, as he joins the grid in Spain on a quest to earn FIA championship points.

Chris is driving and jumping a vehicle unlike anything he has ever driven before -a monster truck. He has his hands full with the five-ton monster.

Richard joins the crew of one of the biggest moving objects on earth, the Marie Maersk container ship, on her continuous 28,000-mile voyage from Asia to Europe.

'56 Ford Back To The Future. Joe uses all his tricks to make the '56 Ford truck look like it's been parked in a field for more than 50 years but drive like a modern muscle machine.

Australia. Mike and Elvis hunt for Australia's favourite pick up, the Hilux. Despite years of farm use, the boys aim to create the ultimate off-roading beast.

How is rubber made into chewing gum? How are fish hooks strong enough to catch a shark? How are the models built at the world's largest Legoland.

How do they build Formula 1 racing cars? How is the Leatherman, America's best-selling multi-tool made? How do they create classic Finnish Aalto glassware.

A classic car expert loves his 1995 Mercedes, but it isn't modern enough for daily use. He asks Helen and Paul to find the perfect family hatchback.

A client has a monthly budget of £260 to spend on a small SUV. Helen and Paul are tasked with finding a motor that's comfortable and city friendly.

Paul has paid just over £15,000 for an Alfa Romeo 2000 GTV that appears to be in great shape. However, Drew is horrified when he learns it's an automatic.

Henry and Sam are on the west coast of Cornwall. Sifting through 50 years of vintage vehicles, they find the first-ever Lotus Elan and a pre-war Sunbeam.

Henry and Sam are in Oxfordshire, checking out a shed full of oversized items. Henry likes a tractor in blue and Sam falls for a Midget racer in a hedge.

Richard ventures 2km beneath the Alps into the world's longest underground railway connection, the Brenner Base Tunnel, riding some giant machines.

Derek and Sean Bieri head back to Zweifel Motors in the Black Hills of South Dakota to revive an Oldsmobile station wagon Derek has been eyeing for 16 years.

Chad Hiltz hosts an annual car show, Rockerbilly Weekend, in his back yard to promote Green Goblin Customs. The team build a cheap car for a big raffle prize.

A Labour Of Love. Ant hopes restoring and selling a 1973 Lotus Elan will help pay for more renovations at the farmhouse. But he hits major engine problems.

In California, a catastrophe cuts one of America's most vital highways in two. In Texas, a refinery explodes with deadly consequences.

Paul and Drew check out a BMW 323i that's been sitting in a barn for 12 years. Drew wants to give the car a tasteful revamp, but Paul has a flashier plan.

Chris gets behind the wheel of a WRX supercar, as he joins the grid in Spain on a quest to earn FIA championship points.

Chris is driving and jumping a vehicle unlike anything he has ever driven before -a monster truck. He has his hands full with the five-ton monster.

Mike gets his hands on a car that has evaded him for decades, a Mark 1 Ford Transit. Elvis is delighted - until he realises everything he needs to do.

Henry and Sam scour Britain's sheds for vehicles to buy, restore and flog for a tidy profit. In Somerset they find Norton motorbikes, Italian mopeds, and French go-karts.

The guys are in Hertfordshire, finding vintage cars, tractors and rare British bikes from the 1950s. When the haggling starts, things don't turn out quite as expected.

Sir Chris learns the ropes in a 911 GT3 Cup car, before heading to the Spa-Francorchamps circuit in Belgium to race the Porsche 911 GT2 RS Clubsport.

A nightmarish course created by viral-video legend Ken Block is Chris' toughest challenge yet. With no prep time, is this test too great to overcome.

Dave and GT spy a super-rare VW 'split-screen' Kombi Van that could be worth big money. Then, an outback barn leads to a classic Mercedes convertible.

In New York, a construction crane crashes into an iconic bridge. Tragedy strikes a massive television tower in Texas. Boston's water supply crumbles.