The Ultimate Fighter

What do you do if you don't trust the world around you? You build a new one. That's the motto of Michael Reynolds, the architect and visionary who created the Earthship. Earthships are houses that are completely self-sufficient and totally off the grid with no electricity or water bills -- ever. Michael and his team of builders, along with 50 interns, have just four weeks to build a house in Big Sky, Montana, for Earthship enthusiast Jeff Saad.

The Perrins brothers use archaic tools and materials to build an extremely remote log hunting cabin in the heart of the Alaskan Range. In addition to their tight deadline, unpredictable weather, encroaching wildlife and more challenges their will and wit.

Builder and native Alaskan, Jeff Ward, has been building houses in remote locations all over Alaska for years. Now his son Bryce, who is also the current mayor of the North Pole, is lending a hand as they combine their talents to create an off-the-grid cabin not too far from Santa's house.

Chris and Caitlin Williams are building the home of their dreams, a 30 foot tall, 700 square-foot, off-grid yurt in Montana, complete with a breathtaking view of the mountains. And with solar power, its own stream, hot running water, a modern kitchen, all-weather insulation, a second floor loft, and even a guest room for friends and family, this definitely isn't your grandfather's yurt. Follow this young couple as they prep their own land and break ground to build their ultimate luxury yurt in the woods.

Ana and Jacob White, leading furniture DIY-ers with thousands of social media followers, build their dream cabin in the remote Alaskan interior on Paxson Lake. With their baby son and 8-year-old daughter in tow, it's a family affair as they fight the extreme elements of Alaska and put their carpentry skills to the ultimate test.

A creative mountain biking group from Carbondale, Colorado builds a unique mountain retreat that doubles as their very own bike park feature. Dedicated to building off the grid, the team of entrepreneurs and artists haul in their materials across rugged terrain by bicycles and excavate by hand for a truly one-of-a-kind build experience.

Matteo Lundgren is taking the art of natural building to a whole new level with his custom-designed Cob houses that blend with the environment surrounding them. Together with his designer, Peaches, they're creating homes built solely from the earth's ingredients, and he wants the whole world to do the same. Follow along as they hand-sculpt houses that are literally grown from the ground up.