Pete Nelson uproots an existing treehouse from the family-owned bed & breakfast Treehouse Point to build a custom-made treehouse as a housewarming gift for his daughter, Emily.

Pete gathers up the posse to build a Wild West-themed treehouse in North Bend, Washington; they build a horseshoe-shaped construct with a bedroom, county jail loft, and genuine copper ceiling set 15-feet high in a solitary Douglas Fir.

Pete finds inspiration in old tales to build a mesmerizing treehouse, with a curved turret that soars two stories high and a deck to take in the amazing sights, over the stems of a twisty silver maple on the shore of Lake Chelan.

Meeting up with South American treehouse impresario Ricardo Brunelli in the heart of Brazil; treehouse travels from the city of Sao Paulo to the farmlands of Parana.

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.

A summer camp for kids with cancer on Long Island gets a clubhouse with a crow's nest and a peekaboo roof that encourages interaction with nature.

Pete goes to Nebraska to build a tree house for a fun-loving family who enjoy music, writing and the occasional happy hour.

Pete and the crew join a group of young carpenters from Sawhorse Revolution, an organization that introduces carpentry to students with community service projects, to build a treehouse escape.