The guys head to Lower Salem, Ohio to save a classic example of a pioneer log home; over in Marietta, they ride up the Ohio River on an old Sternwheeler boat; Sherman and Ryan tour a small factory that makes historical markers.

The guys head to Canaan Valley, W.Va., for the largest commercial project they've ever built; they work with massive timbers and make an intricate post and beam structure; Mark meets the team who will make this place a wellness center and spa.

The Barnwood Builders return to Canaan Valley, WV to finish the biggest commercial structure they've ever built, a two-story, post and beam wellness center with heavy duty steel brackets and intricate scissor trusses inspired by a local church.

Using a mix of old school techniques and modern day tools, Mark and the guys bring every log back to life in an 1800s log cabin; Sherman visits a log home addition in Virginia and Katherine checks in on the progress at Barnwood Village.

The Barnwood Builders travel to New Salem, Tennessee to save a rare 19th century saddlebag style cabin before it's too late, battling the elements to preserve every last timber; Mark tours a home built from container cabins.

The Barnwood Builders are on the hunt for spare parts as they travel deep into one holler and high atop another to two different towns to save two different barns; along the way they find rare artifacts and visit a historic pioneer village.

The Barnwood Builders travel to save a fine example of a Pennsylvania bank barn; crafted from white oak, the timberframe features a style of diagonal bracing they've never encountered before.

The Barnwood Builders head to the majestic Greenbrier River in West Virginia to build a one-of-a-kind pavilion. Combining the elements of a timberframe structure and a classic log cabin, the guys create a spectacular gathering place.

The Barnwood Builders go to Lake Lure, North Carolina to build a log cabin garage right beside Russell's Fort, an American icon from 1775.

The Barnwood Builders access the beautiful backlot of the Boneyard facing a state park to create a picture perfect cabin; working with custom notched inventory, the guys design a two-story log cabin ahead of their client's arrival.

Mark and the guys complete Barnwood Village with a modular unit that needs their rustic touch; the guys reflect on their long journey together traveling the country, saving history and making friends.