Having recently lost his wife to cancer, "Tom" (Timothy Spall) decides to meticulously follow a route they took many years earlier from John O'Groats in Caithness all the way down the island of Great Britain to his hometown near Land's End in Cornwall - some 800-odd miles away. Armed only with a thick coat and a tiny suitcase, he determines to use his bus pass and along the way meets a wide variety of caring - and not so caring - individuals who engage with him, invite him into their lives, or just throw him off the bus for not having a ticket! As his journey continues he starts to attract the...