《棋逢对手》 The west German security police, Verfassungsschutz, need help to infiltrate a group connected to the Rote Arme Fraktion. The swedish James Bond, Carl Hamilton, goes to Hamburg, pretending to be a Swedish officer, thrown out of the country after having been exposed as an East German spy. He gets in contact with the terrorists and joins them. Together they are planning to strike against the CIA headquarters in Stockholm