Peleliu, one of the Palau Islands in the western Pacific, is a small island surrounded by coral reefs. 70 years ago, Japanese and US forces engaged in a bloody battle over this island. The battle was so fierce and casualties so high that people have largely chosen not to talk about it. What happened and what did the American and Japanese soldiers witness there? We'll uncover the truth for the first time, through newly discovered film and eyewitness accounts.