Quiller (1975) HD E5 "Assault on the Ritz" - Michael Jayston, Prunella Gee, Keith Barron, Richard Johnson

Quiller goes undercover to join John Carson's mercenaries who are heading for the Middle East. Unfortunately the mission has been compromised from the start by the Soviets.The ep. is starring Michael Jayston, Prunella Gee, Moray Watson, Richard Johnson, Keith Barron, John Savident, James Bree, Donald Sumpter.
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".