When a space probe crash-lands on a far-flung Pacific atoll, the craft's alien stowaways decide to take over their new world one creature at a time. Soon, the parasitic life forms latch onto three indigenous critters -- a squid, a crab and a snapping turtle -- and transform them into colossal mutant monsters.
Akira Kubo
Yukiko Kobayashi
Atsuko Takahashi
Yoshio Tsuchiya
Tetsu Nakamura
Sachio Sakai
Kenji Sahara
Yū Fujiki
Noritake Saito
Chōtarō Tōgin
Wataru Ōmae
Yukihiko Gondô
Shigeo Katô
Rinsaku Ogata
Yûko Sugihara
Haruo Nakajima
Haruyoshi Nakamura