An American intelligence agent is sent to Tokyo to track down a Communist spy ring.
| Actor | Role |
|---|---|
 Robert WagnerMark Fannon | Mark Fannon |
 Joan CollinsTina Llewellyn | Tina Llewellyn |
 Edmond O'BrienGeorge Underwood | George Underwood |
 Larry KeatingHigh Commissioner | High Commissioner |
 Ken ScottTony Barrett | Tony Barrett |
 Sarah SelbyHigh Commissioner's Wife | High Commissioner's Wife |