In 1991, professional diver John Chatterton discovered a sunken German U-boat from World War II, lying undetected only 60 miles off the New Jersey shore, its unexploded torpedoes and the bodies of its crew still aboard. This two-hour special follows Chatterton and his dive partners in their dangerous quest to identify the missing U-boat, a pursuit that takes six years and costs three lives. The U-boat's history involves unusual coincidences and a startling twist of fate.
| Actor | Role |
|---|---|
| BBernard CavalcanteSelf | Self |
| JJohn ChattertonSelf | Self |
| DDieter KohlSelf | Self |
| RRichard KohlerSelf | Self |
 Roy ScheiderNarrator | Narrator |
| EErich ToppSelf | Self |
| JJ. Gordon VaethSelf | Self |
| HHorst von SchroeterSelf | Self |