"It was only a few years after the starry-eyed young couple got married when scary news threatened to take the wind out of their sails. But Sean Dietrich's wife, Jamie, wouldn't let it. She dared to hope for and plan for a great big adventure, and she made him promise to do it with her. For love and the promise of biscuits along the way, Sean - who was never an athlete of any kind - undertook the bike ride of a lifetime and lived to talk about it....