Forget about oil wells - a new generation is drilling for steam and harnessing the wind. Even coal-fired power plants are turning green. Discover why the largest North American hydro plant underground and see why one of the world's largest nuclear power plants getting fired up again - after 30 years. With production locations including Annapolis Royal, NS; Tiverton, ON; and Churchill Falls in Labrador, meet the innovators of tomorrow's power sources.