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Season guide

Treehouse Masters: Season 9

10 episodes Premiered Aug 4, 2017 Updated Oct 12, 2026
Previously on Treehouse Masters

Season 9 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Directly follows the overarching narrative developments of Treehouse Masters Season 8.
  • ⚡ Faction dynamics and core character alliances shift under escalating external stakes.
  • ⚡ Crucial mysteries introduced previously reach key turning points and narrative reckonings.
  • ⚡ Sets up serialized story arcs that build directly toward the climactic season finale.
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Season 9 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 9 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 9: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

30%
70%
Mytharc (3): Crucial lore & season climaxes
Core (7): Character development & subplots
Side Quest (0): Standalone / filler
S9·E1 Mytharc

A Treehouse Fit for a Viking

Aug 4, 2017 · 60 min

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

S9·E2 Core

Hill Country Hideout

Aug 4, 2017 · 60 min

Pete and his gang ride out to the Lone Star State to build a double-decker hideout in Texas Hill Country; Pete creates rustic perfection in six live oak trees with a saloon-style f

S9·E3 Core

Glamorous Glamping Retreat

Aug 11, 2017 · 60 min

The NTS team leave their tents behind and head to New Jersey to build a campers' retreat for an outdoor-loving couple; with a screened-in porch, floating barbecue deck and cozy han

S9·E4 Core

Lost in the Forest II

Aug 11, 2017 · 60 min

Getting lost in the forest for some behind-the-scenes fun with tree house master Pete Nelson as he uncovers never-before-seen footage, bloopers and loads of extra tree house tours,

S9·E5 Core

Thrill 'n' Chill Treehouse

Aug 18, 2017 · 60 min

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 t

S9·E6 Core

Jeffersonian Honeymoon Suite

Aug 25, 2017 · 60 min

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

S9·E7 Core

The Bird Barn Treehouse

Sep 1, 2017 · 60 min

Two retirees get a retreat on their 100-acre Wisconsin farm; Pete builds a barnlike birdhouse with three separate pods -- an art studio, an office and a lounge -- complete with a s

S9·E8 Core

City Sleeker Treehouse

Sep 8, 2017 · 60 min

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

S9·E9 Mytharc

Grace VanderWaal's Got Treehouse

Sep 15, 2017 · 60 min

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-ol

S9·E10 Mytharc

Alaskan Mountain Treehouse

Sep 22, 2017 · 44 min

Pete builds an A-frame lodge in the shadow of North America's highest peak.

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