At about the same time as lwami, president of a Tokyo company is murdered by an unknown assailant, it happens that an urgent call has been received from an airline company's office on remote Hachijo Island for a special serum. A Cessna aircraft which has been chartered by a man named Ohashi takes off for the island with the serum piloted by Ishida. But when airborne, Ohashi, who is the murderer of lwami, holds up Ishida at gunpoint and orders him to land on a small island west of Hachijo where a ship is waiting to take him to Hong Kong...
石原裕次郎
as Koji Ishida
芦川いづみ
as Shinobu Ishida
中原早苗
as Yumie Naganuma
二谷英明
as Kazuo Ohashi
小沢昭一
as Yukihiro Ando
西村晃
as Tetsuji Mizutani
芦田伸介
as Tadahiro Sasaki
清水将夫
as Ryozo Kada
清水まゆみ
as Yuriko Okiyama
滝沢修
as Junpei Naganuma
