In 1549 the first Christian missionaries arrived in Japan, and over 60 years, they converted over 300,000 Japanese to their belief. In 1614, a nationwide ban was issued, followed by a vicious campaign of persecution that forced the remaining faithful to go underground. Author John Dougill set out on a voyage over 2,000 miles and through 450 years of history. Seeking out the historical sites and vestiges as well as the faithful themselves, he reconstructs the Hidden Christians story.