Watch Pearl Harbor: Legacy of Attack (2001) : Full Movie Online Free Documentary narrated by Tom Brokaw. National Geographic delves into the untold storylines and unresolved mysteries surrounding the Japanese attack on Pearl Harbor on Dec. 7, 1941. Oceanographer Robert Ballard dives deep into the waters of the harbor to find the remains of a Japanese sub and closely examine the famous wreckage of the USS Arizona. This footage is mixed with interviews with survivors of the attack.