After reporter Pat Allen is killed at the Daily Sentinel by a leopard, Britt Reid finds a transmitter in a cigarette box. Later, D.A. Scanlon informs Britt of the discovery of a perfect diamond on Allen's desk. Digging around, Reid discovers that the gemologist had been working on producing synthetic diamonds.
Elenco: Walter Brooke , William Dozier , Wende Wagner , Lloyd Gough , Bruce Lee , Van Williams , Gary Owens .