When her husband Charles (Robert Urquhart) abruptly flees England in order to defect to Albania, a young wife (Sylvia Syms) follows him to Greece, with Drake in pursuit. Once in Greece, Drake must outwit a murderous thug and talk the defector into returning to England, promising that the defector won't be prosecuted. After a deadly border showdown, the three return to england, only to discover that the promise not to prosecute was a ruse perpetrated against Drake