Pete gifts his daughter Emily, and Patrick, her boyfriend and an NTS carpenter, with the ultimate housewarming gift - a treehouse of their very own by turning a piece of Nelson family history into a Moroccan marvel nested nearly 35 ft off the ground.

Pete and crew saddle up and ride off to North Bend, WA to build a wild-west themed treehouse. Set 15 ft high in a lone Douglas Fir on the range, Pete constructs a horseshoe-shaped structure with a bedroom, county jail loft, and genuine copper ceiling.

Inspired by tales of a time long past, Pete builds a treehouse cradled by the stems of a twisty silver maple on the shore of Lake Chelan. The cedar-shingled structure has a curved turret that soars two stories high and a deck to take in views of the lake.

Pete journeys to the heart of Brazil to meet up with South American treehouse impresario Ricardo Brunelli, taking his treehouse travels from the bustling city of São Paulo, to the bucolic farmlands of Paraná, and more.

Pete returns to two of his first builds to reconstruct, revamp, and revitalize a pair of treehouses in need of major makeovers. These fixes prove to be more than just a remodel job when Pete and his team give both treehouses a brand new life in the trees.

Pete constructs an amazing clubhouse for Sunrise Day Camp - a summer camp for kids battling cancer. With a crow's nest outpost and a peek-a-boo roof, this treehouse grants campers full interaction with nature by erasing the line between indoors and out.

Pete heads to the Platte River Valley of eastern Nebraska to build a magical, towering treetop castle for a family that has decided to never grow up.

Pete and the crew rekindle the Treehouse Workshop and come together to build a treehouse escape with a group of young carpenters from Sawhorse Revolution, an organization focused on introducing students to carpentry through community service projects.

A treehouse escape grows into a full-time live-in treehouse when Pete lays eyes on the gargantuan Sitka spruce of his dreams for a hexagonal build on the coast of Oregon.