Quiller (1975) HD E4 "Sacrifice to Survival" - Michael Jayston, Isla Blair, T.P. McKenna

The wife of a diplomat is kidnapped on her brother's farm in South Africa. Quiller is sent out undercover as a journalist and soon realises something is not right.
The ep. is starring Michael Jayston, Moray Watson, T.P. McKenna, Isla Blair, Nigel Stock, Richard heffer, Ram John Holder, Oscar James, Willie Jonah, Alix Kirsta.
Quiller is a fictional character created by English novelist Elleston Trevor. Quiller, whose one-word name is a pseudonym, works as a spy, and he is the hero of a series of Cold War thrillers written under the pseudonym Adam Hall, and became Trevor's most popular character. The books concern a solitary, highly capable operative who works, usually on his own, for a British government organization, referred to as "The Bureau", which "doesn't exist".