Homeowners Chris and Dolores Holman take host John DeSilvia on a tour of their recent renovations, all by an unqualified contractor who did the work entirely too quickly and completely incorrectly. Immediately, John notices that there are cracks forming around the opening the contractor made when knocking down a wall. Inspecting a leak in the upstairs crawlspace, he discovers that the shingles were not installed properly either. John DeSilvia wastes no time starting demolition in search of the reasons for the cracking and sagging interior of the home. The family is at risk until they get to the bottom of this, and John DeSilivia makes sure their home is structurally sound.