Spine-tingling suspenser stars Michael Caine as Major John Tarrant, a British secret agent whose son is abducted and held for a ransom of £500,000 in uncut diamonds. He embarks on a dangerous mission to rescue the boy, even as his superior (Donald Pleasence) has him placed under surveillance, believing that Tarrant may have staged the kidnapping himself. Delphine Seyrig, Clive Revill, John Vernon, Joss Ackland, Catherine Schell also star; directed by Don Siegel. 106 min. Widescreen; Soundtrack: English; Subtitles: English; audio commentary; interview; radio spots; photo gallery; theatrical trailer.