Palfrey and Blair investigate activities of war-game enthusiasts waging international battle by computer.
Palfrey's superior forces him to investigate his close friend Robert Sanding as a suspected traitor.
Palfrey discovers a plot employing mind control of British subjects by Arab extremists.
Palfrey arranges to have a British traitor dissolved in acid when he refuses to return to the Soviet Union.
Palfrey assigns Blair to investigate the relationship between a traitor and a former girlfriend.
Palfrey uncovers a potentially dangerous relationship while checking the validity of a Russian icon.
Palfrey renews acquaintances with a beautiful KGB contact while investigating a defecting Soviet novelist.
Palfrey and Blair discover the reasons for a top defense official's suspicious behavior.
Palfrey's new superior orders him to bring in a traitor suspected of leaking state secrets.
Investigator Palfrey's questions during a supposedly routine assignment interview disturb field agent Fawkes.