The symbiotic mechanoids aboard the United Nations ship Novis Noah battle the evil scientists who want to bring the alien artifact known as Orphan to the surface, even though doing so may drain the remaining power from an already ravaged Earth.

When the discovery of an alien organic vessel submerged in the ocean reveals the key to planetary destruction, a collective of evil scientists called the Reclaimers work to exact mankind's extinction. As one of Earth's defenders, Hime Utsumiya fights on a team of alien organic mecha called Brain Powerds to combat them. Unfortunately, the Reclaimers also have these mecha and mankind's fate hangs in the balance.

When the discovery of an alien organic vessel submerged in the ocean reveals the key to planetary destruction, a collective of evil scientists called the Reclaimers work to exact mankind's extinction. As one of Earth's defenders, Hime Utsumiya fights on a team of alien organic mecha called Brain Powerds to combat them. Unfortunately, the Reclaimers also have these mecha and mankind's fate hangs in the balance.

After the ship's captain disappears, the crew of the Novis Noah, led by Yuu, a defector from the Reclaimers, and American pilot Hime Utsumiya, face a final showdown with the forces that want to bring Orphan to the surface.