The best known of Hitchcock's British films, the civilized spy yarn follows the escapades of Richard Hannay (Robert Donat), who stumbles into a conspiracy that involves him in a hectic chase across the Scottish moors - a chase in which he is both the pursuer and the pursued. Adapted from John Buchan's novel, this classic Hitchcock "wrong man" thriller encapsulates themes that anticipate the director's biggest American films (especially North by Northwest), and is a standout among his early works.