Secrets of the Dead - Season 9 - Eps 4: Japanese SuperSub
During World War 2, Japan developed a super-submarine capable of launching bomber aircraft as a strategic weapon to carry the conflict to the United States mainland. But in the rapidly changing Pacific Theater, one intended mission after another becomes obsolete before the submarines can be deployed
About Secrets of the Dead

Title: Secrets of the Dead
First Air Date: 2000-05-15
Last Air Date: 2025-02-26
Status: Returning Series
Rating: 6.3/10 (from 20 votes)
Language: EN
Seasons: 23
Total Episodes: 115
Network: PBS
Genres: Documentary, Mystery
Production Companies: Thirteen
Synopsis
Part detective story, part true-life drama, long-running series explores some of the most iconic moments in history to debunk myths and shed new light on past events. Using the latest investigative techniques, forensic science and historical examination, it shatters accepted wisdom, challenges prevailing ideas, overturns existing hypotheses, spotlights forgotten mysteries, and ultimately rewrites history.