In a Utopian society, an experiment to find the elixir of youth goes terribly wrong. A noxious gas escapes, aging everything in its path. On an evacuating airship, loaded with young people, a pregnant woman Irea, must choose between

Four old friends relive happy days gone by as they climb France's Mont Ventoux by bike like they did thirty years before, only to find themselves forced to face a ghost from their shared past.