Sammy has been sick with a virus that has all but destroyed society as we know it. He awakes one morning to discover he is an orphan. His only living relative being his grandfather, who lives two hundred miles away in Wales. With no trains, buses or cars running how is he to get there? He packs essentials and, in a highly traumatised state, sets out on his bicycle, having to sleep in woods and fields and eat whatever food nature is able to provide...