In 1991, a group of divers, including John Chatterton, set out on Seeker to explore an unknown object lying below the surface of the Atlantic Ocean and discover an apparent historical impossibility: a World War II German U-boat off the coast of New Jersey. Amazed at this discovery, Chatterton and his fellow divers make a pact to keep the U-Boat a secret until they can discover its identity and claim credit for its discovery. This is to prevent "wreck-jumping". Unfortunately, this pact is broken almost immediately by a couple of members of the team who decide to tell close friends, and the secret is let out. Consulting both the United States Navy and the German Navy yields denials of the possibility of a World War II-era U-boat wreck in that area. Historical records claim the closest U-boat wreck to be hundreds of miles away. The book chronicles the seven year quest to learn the identity of the mysterious wreck, dubbed U-Who by the dive team, the identities of the men aboard her, and how she came to rest on the ocean floor near New Jersey. Over the length of the quest several members of the original dive team quit, either because their lives lead them elsewhere or over concerns for their safety. Several new members were brought in, including Richie Kohler, a member of the notorious "Atlantic Wreck Divers" club that had the reputation of being pirate-like and reckless in their diving philosophy. This philosophy is the complete opposite of Chatterton's, and Chatterton initially dislikes Kohler. However, during the course of the quest the two men discover qualities in each other they both admire and respect. Kohler himself is driven not by monetary desires but the history behind the wreck, and the personal connection he feels as his family is of German descent. He and Chatterton ultimately become close friends. The quest for the identity of the U-boat and its occupants pushes the dive team to the limits, ultimately ending Chatterton's and Kohler's marriages, and the lives of three divers, including Steve Feldman, and the father-son team Chris Rouse, Sr. and Chris "Chrisy" Rouse, Jr.
In media
Books
's self-published, non-fiction bookShadow Divers Exposed: the Real Saga of the U-869 challenges some of the facts about the sinking of. Gentile, a noted wreck diver, researcher, and author, sharply refutes Chatterton and Kohler's theory of how U-869 sank. Gentile cites attack logs and eyewitness accounts from the crew of two destroyer escorts that suggest the U-boat was initially damaged with a hedgehog launched by and then subsequently damaged with a depth charge by the accompanying. Gentile also contradicts the events on deck after the Rouses' fatal dive.
Television
The PBS NOVA episode, "Hitler's Lost Sub", followed Chatterton and Kohler in their quest to identify the sub.
