The tale of Tom (Timothy Spall), a pensioner who uses his free bus pass to take his wife’s ashes from John O’Groats home to Land’s End.  His wife Mary (Phyllis Logan) has only recently passed away and he carries her ashes in a small suitcase.  Along the way, his adventures are recorded by the people he meets and helps, and by the end of his trip he has unwittingly become a social media celebrity.