A little leak will sink a great ship."Upon victory, Harlock orders First mate Yattaran to secure the hostages. But, Yattaran ends up being the one who is captured! Dr. Zero, who has known Yattaran since elementary school, proceeds to tell the crew about his rarely seen genius and ability to analyze the structure of the Arcadia. The Mazone, Elza, sent on an intelligence gather mission, decides to use Yattaran's love of models to get information on the structure of the Arcadia by challenging him to a model building contest. He is to build a scale-model of the Arcadia. But, right when he completes it, Harlock and the crew show up and Yattaran is recaptured.
When a mysterious invader from the stars catches Earth unawares, only the legendary space pirate Captain Harlock and the crew of the Arcadia have the will to stand against them.
