The show opens with a walk through the magnificent Muir Woods, home of the coast redwood, the world's tallest tree. At the house, where general contractor Dan Plummer is dealing with yet another of heavy rain, we see the lighweight concrete mixed and... (more) poured over the kitchen's radiant floor tubing. Our host gets the rundown on the building's sprinkler system from installed Fred Benn, including a dramtic demostration. We visit the workshop of Peter Good in Oakland to see him building new exterior doors for the church - a matched pair for the front and a Dutch door for the side entrance. At the house, Jay Fenton shows the stainless steel flue he's installing above the new Rumford fireplace, while Dan Plummer and the team review the new stairs and the old-growth Douglas fir joist he's recycling into treads and risers.