It was 1939, and the continent of Europe was already echoing the cries of people under aggression. On the continent of Asia, far beyond our western shores, was Japan; a dedicated nation, a dedicated people, dedicated to war against the United States - but we didn't know this yet. Within our country, were thousands of Japanese. Were they dedicated to being good American citizens? Or were there among them, some dedicated towards our destruction? Here was a vital task for the FBI, for the safety and security of America might depend of what they found out...