Discovery HD

Clark attempts a critical repair atop Sig's crane in 20-foot seas. The Cornelia Marie crew battles a fire as Jake's engine room fills with smoke.

Wayde and Brett head to Dubai to check out two record-breaking underwater habitats - and scuba dive with the world's biggest collection of tiger sharks.

WWE Superstar Chris Jericho wants a large aquarium with a replica championship belt and List of Jericho. Will Brett and Wayde be victorious or put on the list.

Home Is Where The Gold Is. Rodger and his sons sold everything to go gold mining and build a homestead for their family. Freddy and Juan help them get their plant running.

From a snowy North Pole abode to a Rocky Mountain retreat, some off-the-grid builders are willing to take risks to live high up in the mountains.

From a container paradise to an artsy mountain abode, some off-the-grid builders try to create private retreats perfect for building family memories.

Investigators find themselves tackling one of their biggest ever hoarding cases when they uncover over 120 cats living inside a house in terrible conditions.

SPCA's cruelty investigators are called to an affluent suburb in the Houston area to rescue horses from a property. But for some animals, help has come too late.

How do they build massive tunnels to prevent blackouts in one of the world's biggest cities? How do they turn pine forest into perfect pieces of timber.

How do the islanders of the Outer Hebrides use pedal power to weave world-famous Harris tweed? And, in Iceland, how do they prepare fermented shark.

How do they make the world's most expensive and luxurious beds? And, how do they deliver supplies and equipment to the International Space Station.

How do they make the distinctive Borsalino hat worn by Indiana Jones? And, how do they make a bicycle which can fold up to a tenth the size of a regular bike.

Glenn teams up with Tae Bo inventor Billy Blanks to transform a struggling karate studio into a fully-fledged fitness empire.

Glenn takes on his biggest challenge yet: saving his own business, Underdog BBQ. Changes include new sources of revenue and a shocking decision.

Mike and Elvis try to revive the 'daddy' of British executive saloons: a 1974 Jaguar XJ6. But it's a risky buy: it's not been on the road since 1990.

After years of searching, Mike's found the ultimate '80s hot hatch: the Renault 5 GT Turbo. Can Elvis restore it in time for its new owner's birthday.

Tony ambushes Rick with a secret offer. With high hopes, Parker's crew fires up a fourth plant in the Quagmire Cut. Buzz bets on White Channel pay.

A monstrous winter storm unleashes chaos across 40 states. A freight train smashes a semi, and rescuers race to save a driver from a frozen pond.

Bruce splurges on a rare Sherman tank in Ohio. But before he flogs it he wants to boost its authenticity and value, so the twins consult a WWII tank veteran for advice.

John risks capsizing with a slack tank. Jake hauls in the highest seas of his career and Sig rushes to get Clark home as mechanical problems mount.

Tony ambushes Rick with a secret offer. With high hopes, Parker's crew fires up a fourth plant in the Quagmire Cut. Buzz bets on White Channel pay.

A monstrous winter storm unleashes chaos across 40 states. A freight train smashes a semi, and rescuers race to save a driver from a frozen pond.

The off-grid dream of an Arkansas family spans three generations - but lately, they're struggling to make it work. A polar vortex hits mid-rescue.

In the winter premiere, Sophia joins Sig at the Russian line. When a crab boat goes down, the Wizard is the only vessel close enough to reach it.

The San Francisco Giants want to bring McCovey Cove inside the ballpark! Can the guys build a tank big enough to impress their loyal fans.

CEO of Zappos thinks his employees deserve a nap room! Wayde and Brett accept the challenge to create a 24 ft long tank with individual sleeping pods.

The fate of a rookie mountain miner lies in the balance after he sinks his life savings into a British Columbia placer claim.

Freddy and Juan face a failing Arizona Desert gold mine. They devise an ingenious cost-cutting system with their first-ever solar-powered operation.

Some off-the-grid builders have attempted to create homes deep in the woods, including an A-frame home in the Black Hills and an artistic cabin in the Cascades.

How Are They Now? Relive some of the most memorable off-the-grid builds and find out how their incredible homes have evolved. Was building off-the-grid worth it.

A cruelty investigator is responding to a call from the sheriff's department. A pony has been dragged down a road, leaving it crippled with pain.

Animal control officers have been removing cats from an apartment where a woman has recently been evicted. Some of the animals are in bad shape and need help urgently.

How do they make the world's most famous electric guitar, the Fender Stratocaster? And, how do they make Swedish fermented cod roe Kalles caviar.

It's been tipping over for 800 years - what's the gravity-defying magic behind Pisa's leaning tower? And, how are chocolate digestive biscuits manufactured.

How did the ancient Greeks invent parchment with techniques still used today? And how do they make shuttlecocks, the fasting moving object in sport.

How do they make smooth writing ballpoint pens that don't leak or fade? And, how do they make pizza for soldiers on the frontline.

The Raneys help the Johnson family who have no drinking water or food sources. Their dogs have been killed by a mystery predator and worry they are next.

The Raneys assist two Montana homesteaders who face being trapped on their property. When a medical emergency strikes, the Raneys face their first ever failed rescue.

Mike and Elvis wrestle an iconic Japanese rally car: a Mitsubishi Lancer Evo7. But half of the engine is sitting in pieces in the boot.

Elvis convinces Mike to buy a bargain VW Golf convertible. But its bright colour is divisive, it's rusty, filthy and has a busted convertible roof.

NASA sends the Artemis II crew on their historic 10-day voyage! This insider's guide follows them from mission prep to splashdown back on Earth.

Bruce is tasked with creating a display based on the French Resistance: a parachute basket filled with items the RAF would have dropped to the Resistance in WWII.

Sig suffers a major systems failure while Jake uses his only gear to back out of trouble. Plus, John bets the farm on sea mammals.

NASA sends the Artemis II crew on their historic 10-day voyage! This insider's guide follows them from mission prep to splashdown back on Earth.

When neighbours send a plea for help, the Raneys rush to rescue a lone Montana homesteader from disaster before winter sets in.

He's In The Water! When Wizard deckhand Lynn Guitard goes overboard, Keith and Monte scramble to rescue him. Sig lets Sophia prove herself at the Russian line.

This Tank Is Ludacris! Brett and Wayde race against the clock to build Rapper and actor Ludacris a classy tank. He wants a sophisticated aquarium, complete with lots of exotic fish.

The ATM team race to complete a tank for a Las Vegas amusement park, the Mini Gran Prix. They design a 20 ft long tank featuring the lost City of Atlantis.

Bust Or Gold Boom? Freddy and Juan rescue a British Columbia miner on his final season without a miracle. Their search for new ground leads to shocking results.

Freddy and Juan fly to an urgent SOS from a former Marine's dated mine in North Carolina. It will be the guys' biggest challenge yet.

A couple try to build a geodesic dome with a view of the Southern Cumberland Mountain Range. But they face uncertain weather and treacherous mountain paths.

A musician and a college student want an off-the-grid treehouse compound in the Arkansas woods. Water and supply issues make this a tough project to complete.

Animal Cruelty Investigators arrive at a property to rescue some horses, but have a surprise in store when they discover a litter of puppies trapped inside a storm drain.

Animal Cruelty Investigators from the Houston SPCA discover an elderly family overrun with cats all living under one roof dangerously close to collapse.

In Cremona, how do they make modern violins that sound as good as the legendary Stradivarius? And, how do they build houses with volcanic rock.

How does a Dutch company make the world's fastest superyachts? And, how do they make new space suits that weigh and cost the fifth of the previous design.

How is Parma ham, the most famous ham in the world, made? Plus, how do they make rowing machines, and how are the iconic London Underground signs made.

How do planes take off and land on a beach at one of the world's oldest airports? And, how do they hand-make the national dress of Bavaria, lederhosen.

In Hawaii the Raneys attempt to save two homesteaders whose dream homestead lays a flash-flood zone. As the weather closes in, can they save the property from the water.

In Oregon, the Raneys are called in to help snowbound homesteaders. Exposed to local predators, they worry about the region's forest fires.

Mike has a tip from an unusual source. He's selling a classic Ford Escort XR3i that he's owned for decades, but there are issues with the roof.

Mike and Elvis are determined to celebrate a dying breed, the iconic V8 engine. They've chosen a classic sports car to do it, the Mercedes SL55.

Dani and Jarrell's heated fight splinters their camp and forces Jamie to pick sides. A dangerous hunt leads to a shocking food win in another camp.

Sig and John co-captain the Time Bandit, sparking a gold rush for giant crab out west. Chaos on the Titan Explorer forces Jake's crew to abandon ship.