Earth is in terrible danger! From the depths of the ocean, Hell Queen V and the evil Mongool empire have risen, attacking Japan with a fleet of ships and monsters. Hope lies only with an unlikely group of heroes that must gather their strength and pilot four mecha capable of beating these foes. Can Tenpei, Jinta, Kenjou and Gensuke save the day, and the world?
In the 21st century, the evil faction known as Galactor is set on world domination… and there’s only one group of people who can stop it: the Science Ninja Team! Under the guidance of Dr. Nambu and the International Science Organization, the team handles everything from taking down giant turtles to battling iron monsters, all in the name of justice! Go go Gatchaman! Take down the evil Galactor and save the world!
On a solitary island in the middle of a vast unknown ocean, Dr. Hell, a deranged genius, plans the final stage of his plan for world domination: the activation of his Mecha Beast Army. The only man aware of Dr. Hell's plan is Dr. Kabuto, a pioneer in new energy sources. In a desperate attempt to stop Dr. Hell before his death, Kabuto uses his research and resources to construct a weapon powerful enough to match that of the Mecha Beast Army, which he entrusts to his grandson, Kouji Kabuto. That weapon is the Super Robot Mazinger Z!