Zipang Season 1 Episode 4 Battle of the Future

The Mirai narrowly escapes the American sub's torpedoes. A panicked sailor in the CIC launches an ASROC. Captain Umezu considers sinking the sub but, at the last moment, self-destructs the ASROC. The Americans escape with knowledge of a new Japanese ship with incredible capabilities. Kusaka learns that the ship is from the future. On board the battleship Yamato, Admiral Yamamoto summons Lt. Tsuda, a naval intelligence officer, to investigate the strange warship flying hinomaru that mysteriously appeared and quickly disappeared in the midst of the Combined Fleet just before the Battle of Midway.