The Battle of Okinawa was one of the bloodiest in the Pacific War. Even women and children were called to arms to cover the serious shortage of Japanese troops. As a result, at least 90,000 civilians perished, the largest number of casualties in a ground battle within Japan. The program reconstructs the overall story of this battle using big data analysis from newly discovered casualty records. Also utilized are invaluable footage filmed by the U.S. Army, and graphic eyewitness accounts of civilians on audio tapes. Witness the search for the truth behind this brutal ground battle that drove both soldiers and civilians into madness, and turned a tropical paradise into a tragic hell on earth.