Discovery Channel HD

Rob tries to trace the source of a dangerous new batch of drugs that's been causing a spate of overdoses in Medway. Dan chases down an aggressive drunk driver.

Dan, Waz and Matt corner one of the Amazon's apex predators, a six-foot caiman. When Trish and Amber's paths cross again, tensions resurface.

How can elephants hear something hundreds of miles away? What goes on inside a chicken's egg? How has an incredible snake learnt how to fly?

A young prodigy, his father and grandfather battle wintry weather in central Alaska. Plus, Freddy and Juan race to complete fixes before a snowstorm hits.

Two reunited brothers are once again strained by mining struggle in Montana. Freddy and Juan must successfully execute a high-stakes treasure hunt.

Thomas and Tom pick up a rusted '67 Chevelle to flip for money towards Sue Yu-Lan Martin's '56 Ford truck. Sue brings Richard Rawlings into the fold.

With a 48-hour deadline looming, the Fired Up Garage crew rush to complete Sue's '56 Ford truck, only to find their tools have been stolen!

Each summer the Gulf Stream pushes north into the waters of southern New England, bringing with it thirty species of shark. Greg Skomal and Joe Remeiro study the annual spectacle.

Heavy D powers up with his next SEMA build: a 6x6 with a custom full-track assembly. And, Diesel Dave adds the finishing touches to his dream El Camino.

Heavy D converts a Vietnam-era bridge boat into the world's only diesel-powered surf boat. Then, the guys head to California to track down a rare Excursion.

Drew is on a road trip, travelling to Norfolk, Pembroke and Essex. In Pembroke, he finds an old church that has been converted into an antiques store with a varied selection.

How do they make the king of cheeses, Parmesan? How do they keep the runways running at the world's busiest airports? How do they manufacture relaxing reclining chairs?

How do they weave a Turkish carpet? How do they use helicopter blade technology for cross country skis, and control the water at Niagara Falls?

How do they turn seaweed into sushi wrapping? How do they make a beer bottle that lasts for fifteen years? How do they keep surfers safe from man-eating sharks?

How do they cast the streetlamps of Venice? How do they prevent another Titanic-like disaster? How do they grow tiny trees for the ancient Chinese art of penjing?

Josh's brother Shane gets caught in the bight as a typhoon slams the Cornelia Marie. Plus, Rip faces a crisis when a greenhorn collapses unconscious.

Johnathan searches for a pot of Golden Kings at the end of a rainbow. A medical mystery confounds Captain Rip and Keith partners with Josh and Casey.

The guys race to finish the '40 Ford Moonshine Runner in time for a buyer - but when the Ford stalls, they take desperate measures to save the garage.

Thomas and Tom acquire a rare first generation 1959 Chevy El Camino, but excitement turns to despair when the cars condition gives John Klump second thoughts.

Join Pete for a spectacular state-side treehouse tour as he visits some of the best treehouses in the USA with fellow treehouse builders.

Pete is in Louisiana to take on his biggest treehouse ever. Totalling 1200 square feet, it will comprise of three separate levels and a 70 foot bridge.

How do they turn seaweed into sushi wrapping? How do they make a beer bottle that lasts for fifteen years? How do they keep surfers safe from man-eating sharks?

How do they cast the streetlamps of Venice? How do they prevent another Titanic-like disaster? How do they grow tiny trees for the ancient Chinese art of penjing?

Todd's team must innovate a bush transmission fix to get the gold moving. Chasing better paydirt, Hunter takes a big swing with a new cut.

When a grizzly stalks the mine, Jack springs into action. When a government inspection threatens to shut the mine, Hunter makes a sacrifice.

Sherri Shepherd reaches out to Wayde to build her a simple but elegant tank. Plus, a company named Rugged Ridge requests the most outrageous build ever.

Renowned NFL Running Back and Super Bowl Champion Marshawn Lynch enlists Brett and Wayde to build him the ultimate Beastmode Tank.

Johnathan sets mile-deep pots and pulls up a mystery species. Jake's niece gets injured on the Saga, and Clark takes the helm in Sig's wheelhouse.

Mandy's shocking news forces Sig and Clark to reconsider their decision to keep fishing. Jake teams up with Rip but powerful Aleutian tidal currents cause crossed lines.

Rick Ness considers whether to keep mining after devastating news. Plus, Kevin Beets turns to one of his dad's rivals for help.

Jared Douglas attempts to harvest the planet's biggest, most valuable trees. But getting these giants from the forest to market could kill him.

Jake and Waz brave frigid water to build a dam. Gabby takes a risk that may lead to hypothermia. Jermaine and Sarah clash over survival strategies.

An overnight snowstorm tests the survivalists' will, leading to a leadership change. Heart conditions put Sarah and Joe's challenges at risk.

How do they weave a Turkish carpet? How do they use helicopter blade technology for cross country skis, and control the water at Niagara Falls?

Heavy D continues to work on his ambitious diesel-powered boat conversion. Meanwhile, the race is on to be ready for the epic showdown against the Dirty 7.

Diesel Dave picks his first giveaway truck and dreams big, attempting to build the 2020 version of the Kodiak. Todd LeDuc challenges the guys to a desert race.

In a quiet South London suburb, Drew comes face to face with the most extraordinary collection of American automobilia he's ever seen, including Evel Knievel's Messerschmitt.

How do they make one of the world's fastest bikes? How do pilots train for death-defying acrobatics? And, how do they bring oil and gas up from the bottom of the sea?

How do they hand-roll New York bagels? How do they make a racing car tyre to grip the track at 320 km an hour? And, how do they make lifelike sculptures out of glass?

How do they collect the trash in road-free Venice? How do they make Australia's famous sheepskin boots? And, how do they turn pond algae into a health supplement?

How do they turn rosebuds into Turkish Delight? How do they hammer out a silver spoon? And, how do they make sunscreen to block out harmful UV light?

Johnathan sets mile-deep pots and pulls up a mystery species. Jake's niece gets injured on the Saga, and Clark takes the helm in Sig's wheelhouse.

Mandy's shocking news forces Sig and Clark to reconsider their decision to keep fishing. Jake teams up with Rip but powerful Aleutian tidal currents cause crossed lines.

Thomas surprises Klump with an offer. Thomas goes on a spending spree, adding two extra cars to the garage's inventory. Meanwhile, problems arise on the El Camino build.

The guys buy back a 1952 Willys Jeep to build an off-road machine! With no buyer, they showcase it at off-road event 'Rednecks With Paychecks.'.

Pete joins two renowned treehouse builders - Christopher Richter and Andreas Wenning - as they tour Deutschland and every treehouse they can find.

Pete gifts his daughter with the ultimate housewarming gift - a treehouse by turning a piece of Nelson family history into a Moroccan marvel.

How do they collect the trash in road-free Venice? How do they make Australia's famous sheepskin boots? And, how do they turn pond algae into a health supplement?

How do they turn rosebuds into Turkish Delight? How do they hammer out a silver spoon? And, how do they make sunscreen to block out harmful UV light?

Working around the clock, tempers flare among the crew. When a rookie mistake shuts down the Holy Roller, Randy and Tater square off.

With winter closing in on the mine, Todd looks for richer paydirt in the Lost Cut. It looks promising, but opening a new cut this late puts the season at risk.

ATM is buzzing after news that international megastar David Hasselhoff wants a tank. As an avid diver, David would love a shark tank in his home.

ATM gets a surprise call from their favourite customer, Shaquille O'Neal. The retired NBA superstar loves his first tank and is back for a second.

Johnathan risks losing his entire live catch when the Time Bandit ventures into fresh water. Josh experiments with glow sticks to attract crab at the darkest depths.

A freighter cuts Jake's lines, forcing his crew to drag for valuable pots. Rip helps Johnathan locate the motherlode only to pay with a broken block.

After ratter thieves raid their mine, the Misfits, Angel and rookie miner, Cody, struggle to find an opal king stone to fulfil an order for a buyer.

A man risks his own life to record a crime in progress and follow the criminals until police arrive. Then, a woman turns her own boyfriend into police.

A family fights to defend each other, and their store, when they are held up. Then, two daring car thieves believe they are untouchable.

Wes confronts Sarah, and a mountain lion stalks the survivalists. Plus, medics are forced to remove a survivalist from the challenge.

A grizzly bear mauling leads to a frightening search-and-rescue mission. Montana delivers a ferocious windstorm the night before extraction.