In London, a counter espionage Agent deals with his own bureaucracy while investigating the kidnapping and brainwashing of British scientists.
Several leading Western scientists have been kidnapped only to reappear a fews days later. Unfortunately, each scientist has been brainwashed and is now completely useless.
The British send Agent Harry Palmer to investigate. Palmer is surprised to be selected for such a mission (considering his past) and believes he has been chosen because he is expendable.