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 go to Lake Lure, North Carolina to build a log cabin garage right beside Russell's Fort, an American icon from 1775. They also visit the fully restored fort, Graham meets a mushroom farmer, and Mark checks out wooden racing boats.