Solo steals a Dove-shaped medal from the body of the leader of a European nation as the corpse lies in state. The medal has information concerning Thrush personnel operating in the country. The UNCLE agent must contend with Satine, a master spy in the employ of the European nation as well as the country's security police, who are working for officials under the control of Thrush. Solo is assisted by Miss Taub, who is supervising a group of students on a European tour.