While the environment may be threatened by man, it will also be saved by man. So believes Pierre Dansereau, ecologist, visionary and inveterate optimist. Brimming with an amazing vitality at age 90, the internationally renowned scientist has a wide-ranging knowledge and a passionate commitment to humanity. In retracing the highlights of his long and fruitful life, the film takes us from Baffin Island to New York City, from the Gaspé Peninsula to Brazil. At each stop on this mini world tour, we witness landscapes of breathtaking beauty. All things are interrelated and the harmony of the whole is essential to our very survival.