Five vacationers and two crewmen become stranded on a tropical island near the equator. The island has little edible food for them to use as they try to live in a fungus covered hulk while repairing Kessei's yacht. Eventually they struggle over the food rations which were left behind by the former crew. Soon they discover something unfriendly there...

• TOHO
• Akira Kubo
• Kumi Mizuno
• Hiroshi Koizumi
• Kenji Sahara
• Hiroshi Tachikawa
• Yoshio Tsuchiya
• Miki Yashiro
• Takuzō Kumagai