Some fifty kilometres west of Montreal rises a hill more than 560 million years old: Mount Rigaud, recognized worldwide as one of eastern North America’s important ecological links. Its rich and varied habitat provides scientists with an unparalleled natural laboratory, while its green spaces and rocky cliffs are a recreational paradise for local residents. The history of the site has been a delicate balance between the demands of development and environmental conservation. To manage such a valuable resource in a sustainable manner that meets the needs of both nature and human beings, especially when it lies so close to a big city, it is essential for citizens to understand their environment. Aided by the music and narration of multi-talented local performer Gildor Roy, viewers will discover the beauties of Mount Rigaud and gain an appreciation of the human dimension of ecology: a respect for the sanctity of life.