Harlock refuses to surrender even after Earth itself is gone. He's chasing a planet that might not exist, leading a crew of misfits against an empire that has already won, because the alternative is accepting that peace is impossible. The show earns its heartbreak by making you believe he might actually find it.

Banished from Earth after the events of Arcadia of My Youth, Captain Harlock and the crew of the space ship Arcadia continue their journey through space. The Illumidus, a destructive humanoid race, have seized Earth and many other planets, ruining, enslaving or wiping out nearly every habitable world they reach. Harlock fights back against them while hunting for a legendary Planet of Peace, a place where every people in the universe could live in freedom, without war. Can he find it?