The character of Tara King on the television episode is replaced with that of
Emma Peel on the radio.
Maxie's sidekick finds his voice
on the radio instead of using a car horn to communicate (TV).
Marcus Rugman (TV) has a sex change and becomes Marcia Rugman (Radio).
A female resident known as Lettie the Lass from Lancashire appears at the Grange (Radio only).
A scene appears at the beginning of the radio adaptation where Mrs. Peel is
map-reading for Steed as they drive to the Capital Land and Development Company. However, they
only find the place by luck as Mrs. Peel has been reading the map upside-down!
Another radio plot difference is that one of the directors is strangled whereas in the TV version he
has the carpet pulled from beneath his feet and falls out of an open window to his death. This
sequence was a late addition to the television version, and was absent from the script supplied to