Young Harlock wo Oe! Cosmo Warrior Zero Gaiden is a tV series anime that premiered in summer 2001, produced by Vega Entertainment.

About the production: the story comes from a video game, there are 2 episodes of about 24 minutes and its current status is "finished".

Its main genres are drama and sci-fi, with themes such as Pirates and Space.

On AniList, Young Harlock wo Oe! Cosmo Warrior Zero Gaiden has an average score of 61%, an average score, and appears on 1,038 users' lists.

The franchise continues in or follows from: Cosmo Warrior Zero.

Pirates have kidnapped Zero in an attempt to finally defeat the notorious Captain Harlock. Harlock is bound by a promise to his friend Toshiro to protect his lab on a strange mushroom planet. Fates collide as Zero, Harlock, Sylviana and the pirate Hunter all pursue their own agendas during one decisive battle. (Source: Anime News Network)

Official synopsis from AniList.