Discovery HD

Pete goes behind the scenes with unseen footage, bloopers and lots of extra treehouse tours - including a peek inside Dale Earnhardt Jr's arboreal escape.

Chainsaws spark fires, and when a blaze hits the Forever Claim, Jared must make a call whether to end the season early.

Chasing a royalty-free payday, Jared bets half his crew on an abandoned claim. With $1m due in 8 weeks, it could win - or sink - the Forever Claim.

A couple build a sustainable straw bale panel house in the Hudson Valley - the first of this type in America. They need to finish it before winter hits.

A builder is constructing a modular home high on a cliff off the coast of Vancouver. Even a small mistake could result in the home tumbling down into the ocean.

Staff hope for a mating match between the black rhino newcomers. Meanwhile, the meerkats are put on a new diet and a lizard needs support.

Staff feel the pressure as a century-old Galapagos tortoise undergoes surgery. And, an orphan koala bear gets a special birthday surprise.

Nicole and pilot Bruce leave the Lower 48 for a new life up north. With their own private plane, they can buy a house anywhere - as long home has its own runway.

Roland and Tiffany live in Alaska's biggest city, Anchorage, but manic city life is too much for their big family. Can they find a home to escape into the wilderness.

Wes and Angela own an air taxi company in Alaska. They want a million dollar dream home and can fly anywhere in the state to find it. Can they agree on the location.

Ron and Lacey have a big truck and a small budget for their new home. They're willing to sacrifice space for the truck to be right on a lake near Big Lake.

Back To Black Hills. In Wyoming's Black Hills, Marty's back to help the Black family after their success is threatened by huge issues and intensifying bad weather.

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.

The fifth generation Ford Bronco is an American Icon. Mike gets his hands dirty preparing one for the biggest collector car auction in the world, Barrett Jackson.

With emergency flares shooting off overhead, 12 survivalists are suddenly forced to grab what they can and dive into the pitch-black Philippine Sea.

A rare winter tornado outbreak tears through towns across Tennessee as dozens of eyewitnesses capture the devastating power of nature in real time.