Facing an onslaught of demonic Oni threatening humanity, the scientist Dr. Saotome devises a brilliant solution: constructing colossal robots fueled by Getter Rays. Leading the charge is Getter Robo, piloted by an unlikely trio - the fierce martial artist Ryoma Nagare, the cunning criminal Hayato Jin, and the serene monk Benkei Musashibou. United as the Getter Team, they valiantly battle to eradicate the malevolent Oni and safeguard humanity's future.