Widower Tom, on the current death of his partner Mary, uses his totally free bus pass to take a trip the size of Britain from John O'Groats in Scotland to Land's End in Cornwall, their shared birth place, using only regional buses. It's an incident-fuelled nostalgia journey as well as his experiences with neighborhood individuals make him a media phenomenon. Tom is entirely uninformed and to his surprise on arrival at Land's End he's welcomed as a celebrity.