TV Deep Sea Detectives - Season 3 Episode 2 : Forgotten Sub of WW II Deep Sea Detectives - Season 3 Episode 2 : Forgotten Sub of WW II 7.75/10 by 6 users June 20, 1941. The U.S. submarine O-9 noses below the surface off the coast of New Hampshire, carrying a crew of 33, and is never seen again. Years of inquiries have failed to find answers to what caused this terrible tragedy…until now. In this exciting program, join DEEP SEA DETECTIVES Richie Kohler and John Chatterton, as they head out to sea with the National Undersea Research Center to take the first-ever video survey of the O-9 wreck in an attempt to solve this long-forgotten mystery. First, travel to the U.S. Naval Submarine School in Groton, Connecticut, where the team learns about some of the potential emergencies and worst-case scenarios submariners face while submerged. Next, investigate evidence of structural deficiencies on the O-9 before it was returned to service for the war, which could point to an explanation for the tragedy. Finally, experience the thrill of an up-close look at wreck, which provides crucial clues as to what might have gone wrong. Details Casts Posters Images Title Deep Sea Detectives - Season 3 Episode 2 : Forgotten Sub of WW II Alternative Titles First Air Date 2003-04-01 Last Air Date 2006-04-24 Number of Episodes 68 Number of Seasons 4 Genres Documentary, Networks History, Casts Richie Kohler, John Chatterton, Cade Courtley Plot Keywords , Richie Kohler John Chatterton Cade Courtley Episodes List Deep Sea Detectives Season 3 :Episode 1 Loch Ness: Great Monster Mystery Loch Ness: Great Monster Mystery 2005-04-25 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 2 Forgotten Sub of WW II Forgotten Sub of WW II 2005-05-02 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 3 D-Day Destroyer D-Day Destroyer 2005-05-09 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 4 Winter of Disaster Winter of Disaster 2005-05-16 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 5 Mysterious Loss of the German Fleet Mysterious Loss of the German Fleet 2005-05-23 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 6 D-Day Troops: Lost at Sea D-Day Troops: Lost at Sea 2005-06-06 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 7 Another Atlantis? Another Atlantis? 2005-06-13 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 8 More Secret Underwater Caves More Secret Underwater Caves 2005-06-20 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 9 U-Boat Mystery U-Boat Mystery 2005-06-27 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 10 Secret Allied Trap Secret Allied Trap 2005-07-04 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 11 Sub War Sub War 2005-07-11 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 12 USS Perry USS Perry 2005-07-18 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea... Deep Sea Detectives Season 3 :Episode 13 Damn the Torpedoes Damn the Torpedoes 2005-07-30 Deep Sea Detectives was a television show on The History Channel. The show began airing in 2003. In a post dated September 1, 2006 on the Deep Sea...