An intimate epic spanning 10 years and 10,000 miles, One Day We Arrived in Japan reveals how people's dreams and expectations stand up to a grueling new reality on the other side of the world. Three Brazilian families leave their homeland in pursuit of a better life in Japan -- what will happen to each of them? Over the past 25 years, hundreds of thousands of Brazilians of Japanese descent have gone to Japan to work. This unique documentary brings to light the gripping personal stories behind a major transnational phenomenon.