In 1978, college drop-out John Mackey scraped together $45,000 to open his first health food store, "Safer Way." A few years later he co-founded Whole Foods Market — and launched an organic food revolution that helped change the way Americans shop. PLUS in our postscript "How You Built That," we check back in with Steve Humble, whose company Creative Home Engineering makes hidden secret passageways in people's homes ... just like in the movies. (Original broadcast date: May 15, 2017.)