Episode Title:The River of Life.Episode Description:When Doc comes into the workshop, he has a surprising look on his face, and then tells Sprocket that he just met a man on the street who could make him $100,000 richer; all Doc has to do is allow the man to dump industrial waste into the limestone caves below the shop. When Sprocket hears this, he wants Doc to not take the deal, because there's furry creatures who live down there. Meanwhile, Boober doesn't feel like going for a swim today when a heat wave strikes Fraggle Rock...