Can Emma Peel further her career as lady spy by becoming a top pop singer idolized by millions?

There was more to singer Gloria Munday's death than simply murder, and so Steed puts Mrs. Peel on the job. Luckily she can belt out a song with bazazz, because by stepping into Gloria Munday's shoes she can find out a thing or two.

Only she doesn't count on taking a nine-hour swim in the deep blue sea with an unscrupulous sadist on her heels while Steed is locked behind stout prison bars!