Tom solves the mystery of melted vinyl siding. Kevin performs a whole-house energy audit. watch
Ceiling drywall, rustic plaster, alternative septic systems, 'trimberframing.' watch
The four remaining teams start with bog snorkeling in Belfast, Northern Ireland, where one team faces this season's final elimination. The final three Teams then sprint to the finish line in Washington, D.C. in a Race through our nation's capital for $1 million during the two-hour season finale. (TV-PG L) watch