Attack of the Space Terrapin - Centre Neptune, a world defence base, lies off the West Coast, 900 fathoms beneath the surface of the ocean. There, the precious Vitaluman is mined, an amazing ore that renews the depleted soil of the Earth and the other planets, and without which, all life would cease to exist. Guarding the base from attack is the invincible transmutable G-Force: Keyop, Princess, Jason, Tiny, Mark and 7-Zark-7, their Robotic protector.
Rescue of the Astronauts - Two astronauts find startling evidence of giant alien bases, underwater on Mars. Returning from their top-secret mission, the mysteriously disappear on re-entry. 7-Zark-7 calls in the G-Force. This assignment: rescue the astronauts and get the taped evidence. The only problem, the astronauts have been hijacked by the aliens, who don't want anyone to know about their bases, and Zoltar's their leader!
Features the episodes "Attack of the Space Terrapin" and "Rescue of the Astronauts"
Contains corresponding Gatchaman episodes with English subtitles