A moon base is destroyed by a spaceship from Zigra which is looking to take over the planet earth to use its oceans for its ocean-dwelling denizens. Gamera must once again come to the aid of the human race while all of Japan roots him on.
Gamera vs. Zigra is a 1971 Japanese kaiju film directed by Noriaki Yuasa, written by Niisan Takahashi, and produced by Yoshihiko Manabe and Hidemasa Nagata. It is the seventh entry in the Gamera film series, after Gamera vs. Jiger, which was released the previous year. Gamera vs. Zigra stars Eiko Yanami, Reiko Kasahara, Mikiko Tsubouchi, and Kōji Fujiyama, and features the fictional giant monsters Gamera and Zigra.