Desmond Simkins, Daphne Honeybutt, 'Harold Crump', Charlie Bind, Carstairs, Milchmann, and Doctor Crow
What is the plot of Carry on Spying?
Agent Simpkins and trainees chase STENCH (the Society for the Total Extinction of Non-Conforming Humans) for a stolen chemical formula, using gadgets and disguises to defeat villains The Fat Man, Dr Milchman, and Dr Crow.