Embarking on an interstellar odyssey, Captain Harlock is thrust into a cosmic tale of epic proportions as he confronts the repercussions of a fallen ally's son creating the Ring of the Niebelung. With malevolent factions amassing to challenge the galaxy's final bastions of power under the leadership of a deranged exile, Harlock must navigate through colossal armadas to safeguard the remaining deities and retrieve the ring, racing against time to preserve Paradise from impending doom.