Gamera Vs. Zigra is a 1971 Japanese kaiju film directed by Noriaki Yuasa. When an alien spaceship attacks a Japanese Moon base, a group of humans investigate and are captured by the aliens, who reveal themselves to be from the planet Zigra. The Zigrans demand that Earth surrenders, but young Kenichi and Helen manage to escape and summon Gamera, the giant turtle-like monster, to save the day.
