In the distant future, human science and technology are prosperous, and they have entered an era in which they can travel to all corners of the galaxy at will. At the same time, people on the edge of the galaxy started wars in order to obtain the right to live back to Earth. To this end, four Death Shadow-class space battleships were built and put on the battlefield. The captain of the battleship No. 4 was named Hallockvoiced. He became famous in the first battle and became a hero in history. However, as the war came to an end, Hallock's figure disappeared from people's sight. Not long after, the pirate ship "Arcadia" with a huge skull headdress in the bow suddenly appeared, and the pirate captain turned out to be the once hero Harlock! This time, as a cosmic pirate, he raised the flag of rebellion against the federal government and became the most wanted criminal in the universe.
The young "Yama"received a secret order to assassinate Harlock from the government, and then sneaked into the Arcadia disguised as a crew member. He calmly and meticulously approached this cosmic felon step by step, but in the process one after another discovered Hallock's true purpose, the true face of the pirate ship, and the hidden truth on earth. The world is about to die. For that ten-thousandth hope, Hallock and his comrades united and sprinted with all their strength. The truth that was once concealed by the federal government in the dark, the closed door vaguely opened, revealing the light of the future.
