How Do They Do It?: Season 12

Heavy-lift Plane and More

21min - The most advanced heavy-lift airplane in the world is built. Then, workers manufacture and test a hunting boot, and the secrets behind making sure bananas are ripe when they hit the shelves are revealed.

Logging, Tiles and Jaffa Cakes

21min - Workers turn millions of tons of cedar trees into perfect planks of wood siding. Then, world-famous Spanish tiles are handcrafted, and a favorite chocolate-coated treat is manufactured.

Monorail and More

21min - A monorail is built in the middle of one of the most densely populated cities in the world. Then, dishes fit for a king are crafted, and bakers feed a global food fad.

Wine and More

21min - Wine is made on a massive scale. Then, jackets that can survive a hike up the Himalayas are manufactured and tested.

Screws and More

21min - Workers manufacture screws strong enough to hold a fighter jet together. Then, a favorite breakfast spread is created, and a desktop printer is used to create a dress.

Road Rollers and More

21min - The secrets behind building heavy-duty road rollers are revealed. Then, bread is baked in a can, and workers manufacture luxury mobile phones.

Tinned Grapefruit and More

21min - Workers pick, process and can thousands of tons of grapefruit. Then, ski resorts make it snow, and conveyor belts tough enough to handle millions of pieces of luggage are manufactured.

Harp Strings and More

21min - Cow intestines are turned into harp strings. Then, workers make and test roof windows, and traditional Belgian waffles are made.

Aga Cookers and More

21min - Scrap metal is turned into luxury cookers. Then, billions of sticks of incense are made each year, and workers brew a 400-year-old liquor.

Robo-farm, Log Stacker and Piano Moving

Robo-farm and More

21min - A Dutch farm uses robots to milk cows. Then, workers build a massive tree-stacker tough enough for the brutal logging industry, and a valuable piano is transported for a leading musician.

Bamboo Scaffolding and More

21min - A towering scaffold is built from giant poles of bamboo. Then, workers mine for the mineral that makes fireworks red.

Espadrilles and More

21min - Classic espadrille shoes are handcrafted. Then, workers build and erect prefabricated houses, and priceless documents are safely stored for hundreds of years.

Macadamia Nuts and More

21min - Workers harvest and process the world's toughest and most expensive nuts. Then, lake water is turned into tap water, and barriers made to hold back thousands of fans are built.

Cooking Pans and More

21min - The tallest apartment block in the world is built. Then, classic British boots are manufactured, and cooking pans tough enough to last a lifetime are made.

Sitar, Biltong and Bulldozers

21min - Workers craft a classic Indian instrument, the sitar. Then, biltong, South Africa's answer to beef jerky, is made, and monster bulldozers are built.

Fedoras and More

21min - Iconic fedora hats are fashioned the same way they were decades ago. Then, workers manufacture the cement that builds the world, and millions of peas are harvested and frozen in under three hours.

Mohair, Quadskis and The Harp

21min - Goat fleeces are turned into fabric for mohair blankets. Then, workers build a quad-bike that turns into a jet ski, and Celtic harps are manufactured.

Redbrush Tea and More

21min - Workers harvest and process thousands of tons of caffeine-free tea. Then, robots help make sure luggage catches the same plane as its owner, and a hairbrush fit for royalty is manufactured.

Credit Cards and More

21min - Credit cards with security features are manufactured. Then, hundreds of thousands of hot lunches are delivered from home kitchens to offices in Mumbai every day, and a ship is lifted hundreds of feet while still in the water.

Power Tunnel and More

21min - Massive tunnels are built to prevent blackouts in one of the world's biggest cities. Then, NASA technology is used to cook the perfect pizza, and pine forests are turned into timber.