He is the latest in several cases of businessmen found scared out of their minds across the country, which leads to Steed and Peel being called in to investigate.
Unsure of what is causing these incidents, Steed and Peel determine that all the affected men are owners or senior executives at ceramics companies.
The Chief Scientist, Dr Voss, has developed a questionnaire for targets to answer under the innocent guise of 'market research', thus allowing the Bureau to understand their deepest fears and apply them in practice.
The scaring incidents are carried out by Pemberton's enforcer, Gilbert, who had been the one to drive Crawley in the car and attack Mrs Peel in White's office after his death.
Realising the role of the Bureau in the attacks, Steed poses as a businessman and meets with Pemberton, Voss and Gilbert to hire them.
At the Bureau's headquarters, Pemberton demands Steed's whereabouts from Mrs Peel and threatens to use weaknesses from her questionnaire answers against her.
However, the testing determines that Peel has a high fear index, meaning she is not easily scared like the others, and so Pemberton instead resorts to threatening torture.