Japanese Sub at Pearl Harbor

The Japanese attack on Pearl Harbor was a move of unprecedented aggression that shook the U.S. out of its peaceful slumber and into WWII. But for 60 years, veterans of the destroyer USS Ward claimed they sank an enemy submarine outside the harbor more than an hour before the aerial attack began. The wreck was never found, and the story was dismissed. In August 2002, a dive team crossed its path and their find made headlines worldwide. We travel to Pearl Harbor to investigate the midget sub mystery.