The Avengers The See Through Man Hes found the formula?

A short clip from The Avengers episode: The See-Through Man Rights belong to StudioCanal and Lionsgate.

Mrs Peel and John Steed celebrate another case solved - exchanging messages on more microscope slides. for more. (c) Studio Canal, used .
Mrs Peel is summoned to assist John Steed in another baffling case - with a message on one of her microscope slides! for more. (c) Studio .