Pete heads to Dogwood Canyon, a 10,000 acre nature preserve in Missouri. Despite a tight Christmas deadline, Pete and his team create a two-story, hands-on learning haven with a giant copper-topped turret that can endure thousands of visitors.

Pete and the crew head down to Leakey, TX to build a colossal, Texas-sized treehouse. He rounds-up "the magnificent seven" of cypresses alongside the banks of the Frio River and builds a treehouse with the longest bridge in NT&S history.

Pete and his team embark on a quest to an idyllic farm in Waxhaw, NC with orders to craft an elegant English retreat with a hanging bed fit for a queen. But ghosts might stand in the way of Pete and his holy grail of pastoral treehouse builds.