A young man grapples with an urge to kill and confusion about his origins.
The Twilight Zone
Season 4 Episode 2: The Thirty-Fathom Grave
As a U.S. Navy destroyer cruises near Guadalcanal in the South Pacific, its sonar detects muted but constant hammering on metal undersea. The eerie sounds emanate from a submarine on the ocean floor, apparently there since World War II....