The Black Windmill

Maj. John Tarrant (Michael Caine), a British intelligence officer, must track down his kidnapped son and thwart a gang of arms smugglers led by the ruthless Drabble. The agent's mission becomes increasingly complicated as he uncovers a web of deceit and betrayal within his own organization. With the help of Cedric Harper (Donald Pleasence) and Ceil Burrows (Delphine Seyrig), Tarrant navigates a complex game of cat and mouse to rescue his son and bring Drabble to justice.