Five couples embark on journeys as unique as they are, each one designed to extend and explore the limits of aging and ultimately, to keep them young. We'll join them as they reveal the secrets of bio-tech research centres in Silicon Valley, swim with dolphins at the historic site of the fountain of youth, divine the tantric arts on the beaches of Cap d'Agde, learn the life-giving power of community as they surf the coast of Peru and push their bodies to the limits of endurance in the Austrian Alps. From highfalutin, to folksy, to just plain flakey, each trip will challenge the voyaging couple to transform themselves and everything we think we know about aging.