Joan Crawford,[2] Telly Savalas, Herbert Lom,[3][4] Diane McBain, Jill Ireland, and Kim Darby[4] are among those in the cast.

The film was directed by Barry Shear and written by Norman Hudis with the story by Boris Ingster.

Also changed were some short scenes that became more violent or sexy than generally shown on American network television at the time.

In some fight scenes, the movie version contains more violent images compared to the episodes (e.g., a bloody face in the London bar, greater violence in the Japanese temple).

Like One of Our Spies Is Missing, the film also required a new score (by Gerald Fried) due to "The Five Daughters Affair" being tracked with music from other episodes.

agents Napoleon Solo (Robert Vaughn) and Illya Kuryakin (David McCallum) are being attacked with missiles from small helicopters while on their way to see scientist Dr. Simon True (Jim Bowles).

As the head of U.N.C.L.E., Alexander Waverly (Leo G. Carroll) informs Solo and Kuryakin that the dead man has four step-daughters and one biological daughter, Sandy True (Kim Darby).

True's widow, Amanda (Joan Crawford) was having a love affair with THRUSH operative Randolph (Herbert Lom), but he was only using her to get closer to Dr.

First, they visit Rome in search of Margo (Diane McBain), who has married Count Valeriano De Fanzini (Telly Savalas).

Solo and Kuryakin rescue Margo, fight with Randolph and the Karate Killers (who have followed them to Rome), and are saved by Sandy's quick thinking.

They next head to London, where they find Sandy's step-sister Imogen (Jill Ireland) arrested by a constable for indecent exposure (a bikini).

With half the four photos, the team heads to the Swiss Alps, where step-sister Yvonne (Danielle De Metz) lives in a hotel but is behind in paying her bills.

Randolph takes the three to the THRUSH central facility at the pole (north or south is not specified), which serves as their main research and manufacturing station.

Solo, Kuryakin, Sandy, one of the geishas, and Waverly all travel to London to attend the double wedding of Imogen and the constable, and Yvonne and Carl.

The band Every Mother's Son’s song "Come on Down to My Boat", which went to #6 on the Billboard charts in July 1967, is used in both the opening credits to the film and in a London nightclub as a fight breaks out.