On an archaelogical mission to the end of the known universe, Professor Daiba unwitting unleashes an ancient horror from its confines. Five years later the malevolent alien force sets in motion a plan which reunites the various crewmembers of the Arcadia to sail the stars once more as well as bring Tadashi Daiba to meet Harlock for the first time (again). (Source: Anime News Network)
Watch SPACE PIRATE CAPTAIN HERLOCK: OUTSIDE LEGEND - The Endless Odyssey episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.