Food and travel writer Michael Booth and his family embark on an epic journey the length of Japan to explore its dazzling food culture. They find a country much altered since their previous visit ten years earlier (which resulted in the award-winning international bestseller Sushi and Beyond). Over the last decade the country's restaurants have won a record number of Michelin stars and its cuisine was awarded United Nations heritage status. The world's top chefs now flock to learn more about the extraordinary dedication of Japan's food artisans, while the country's fast foods - ramen, sushi and yakitori - have conquered the world. As well as the plaudits, Japan is also facing enormous challenges. Ironically, as Booth discovers, the future of Japan's culinary heritage is under threat. Often venturing far off the beaten track, the author and his family discover intriguing future food trends and meet a fascinating cast of food heroes, from a couple lavishing love on rotten fish, to a chef who literally sacrificed a limb in pursuit of the ultimate bowl of ramen, and a farmer who has dedicated his life to growing the finest rice in the world... in the shadow of Fukushima.