S1·E32 Call of the Star Flute

Earth is meaningless to me without Mayu."The Mazone plot to use Mayu to lure Harlock and the Arcadia to the Wind Planet and then attack with a powerful mine. As the Arcadia is making up its mind as to where they will go, they intercept a communication saying that the Mazone have sent advance troops to Earth. The crew asks Harlock if they can return to Earth. As Harlock is pondering what to do, the sound of Mayu's ocarina ominously comes to them from the Wind Planet, so they set their course to there. Thanks to the will of Tochiro, which remains on board the Arcadia, they are able to escape the Mazone's trap. Just as it looks like they will succeed in rescuing Mayu, she is whisked away to another planet.