The quest for immortality is mankind's oldest dream. Now some scientists believe they are close to understanding why we grow old, and how to slow, or even stop the ageing process. In America this research has spawned the Life Extension movement, whose members follow special diets and consume large quantities of anti-ageing drugs in the hope of living for a very, very long time. Everyman has been to America to film the leaders of the Life Extension movement and to examine the scientific evidence behind their claims. What would be the effect on our lives if we could greatly extend the human lifespan? Is Life Extension an admirable dream coming true -or is it a nightmarish attempt to escape the reality that has always called forth the best in mankind?