Dawson (Robert Ryan) runs a tough crime syndicate in 1950s Japan, even stealing weapons from a military train. Eddie (Robert Stack) is a US Army investigator who goes undercover as a two-bit hoodlum who has come over to Tokyo to try his luck. He links up with Mariko (Shirley Yamaguchi), the girl of an ex-gang member who Dawson had shot, and manages to get into Dawson's group.
He needs to find evidence and catch Dawson on the job, knowing that the boss has inside men in the police, this does not prove to be that easy though. Can Eddie stop Dawson before his cover is blown?
A lovely period piece set in a Japan just starting to emerge from the postwar rebuild. The film is tense with hard boiled leads and a superb final confrontation in a fair ground. Not quite a Noir (its in colour for a start) but definitely has that feel.