Treehouse Masters - Season 9

Pete takes on his first international tree house in Norway; working alongside a local builder named Frode, the one-of-a-kind, 24-foot-high retreat accommodates eight and allows for stunning views of the nearby lake.

Getting lost in the forest for some behind the scenes fun with Treehouse Master, Pete Nelson, as he uncovers never-before-seen footage, bloopers, and loads of extra treehouse tours, including a new peek inside Dale Earnhardt Jr's arborial escape.

Pete descends upon western Washington to make a tree house for action and relaxation; with a 55-foot-long bouncy-bridge entryway into a 20-foot-high structure and a zip line that travels through the forest, this tree house generates non-stop thrills.

Pete and his team descend upon Virginia for the first time to bring the tree house revolution to Bella Rose Plantation; drawing on the architectural innovations of Thomas Jefferson, Pete designs a luxurious two-story tree house with colonial columns.

Pete is back in Texas to build a sophisticated, sleek-and-chic treehouse in the heart of Dallas; Daryl and the NTS team put treehouse engineering to the ultimate test at Washington State University, proving down-to-the-pound the power of the TAB.

When asked in 2016 what she would do with her winnings, "America's Got Talent'' Season 11 winner Grace Vanderwaal said she wanted a tree house built by Pete Nelson; the 13-year-old singer-songwriter's wish comes true.

Pete travels to Alaska to build a mountaineering lodge in the shadow of North America's highest peak; constructing an A-Framed masterpiece for the Mt. McKinley Princess Wilderness Lodge with breathtaking views of Denali.