Francisco Cabreras, teenage son of the president of the South American country of San Ibrez, is shot dead by members of a terrorist group opposed to his father whilst he is playing polo. Whilst CI5 get on the killers' trail after an eye-witness identifies their car, Doyle discovers that Anita, Francisco's feisty step-sister, is unknowingly dating one of the terrorists. She agrees to help in his capture before his gang claim another victim on a golf course.
—don @ minifie-1