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 Kuboas Taro Kudo
Yukiko Kobayashias Saki, native girl
Kenji Saharaas Makoto Obata
Yoshio Tsuchiyaas Dr. Kyoichi Mida
Tetsu Nakamuraas Chieftain Ombo
Yū Fujikias Asia Development Promotion Division Manager
Sachio Sakaias The Editor