Raynor Winn knows that her husband Moth's health is declining, getting worse by the day. She knows of only one cure. It worked once before. But will he--can he?--set out with her on another healing walk?

The Cape Wrath Trail is hundreds of miles of grueling terrain through Scotland's remotest mountains and lochs. But the lure of the wilderness and the beguiling beauty of the awaiting glens draw them northwards. Being one with nature saved them in their darkest hour years earlier--and their hope is that this experience can work its magic again.

So Raynor and Moth embark on an incredible thousand-mile journey: from Scotland to the familiar shores of the South West Coast Path, from Northumberland to the Yorkshire moors, and from Wales to home again. As they map with each step the landscape of their island nation, they find themselves facing existential questions--about themselves and about their country--during this epic, inspiring odyssey.