Young Harlock o Oe! Cosmo Warrior Zero Gaiden

The long war between the planet Earth and the machine men is finally over, resulting in a peace that is more a victory for the machine men than the Earth. Warrius Zero lost his family in the war to the machine men but despite this he is still is a member of the Earth fleet that is now working in concert with the machine men. His ship, made up of both humans and machine men, has been given a near impossible task: capture the space pirate Captain Harlock. While Zero struggles to accomplish this task, evidence begins to surface that the peace between machine men and Earth may not be as it seems....

The year is 2977. Mankind has become complacent and stagnant. All work is done by machines, while humans spend all their time on entertainment. But when a mysterious invader from the stars catches Earth unawares, only the legendary space pirate Captain Harlock and the crew of the Arcadia have the will to stand against them.

Many years into the future, battle has been raging across the galaxies as 500 billion humans, whose forebears were exiled from Earth, plan to return to what is still called home. Forced to flee a ravaged Earth, humans have now depleted the corners of the galaxy to which they fled. Earth has now become the most valued and precious resource of all, controlled by the corrupt Gaia Coalition which governs the human race across the different galaxies. Captain Harlock and his trusted crew are the only hope mankind has of discovering the secrets that the Gaia have kept hidden.

The sequel to Cosmo Samurai . A part of Toonami's Total Immersion Event (T.I.E.) for 2022.