Overview
The war lords of a potential enemy of the US has the spy ring, led by John Baroda, the Spy King and his aide Nitra, sabotaging the plans for a vast defense system of radar stations along the American borders. Radar Defense Bureau operative Chris Calvert comes to the rescue of a brilliant radar scientist, Joan Hughes, who has been kidnapped by Baroda henchmen in chapter 1 ("The Fatal Fog"), and the two battle together before putting an end to the Spy King in the aptly-named chapter 12, "Day of Reckoning".
| Actor | Age then | Age now | |
|---|---|---|---|
 | 39 | March 14, 1999 (88) | |
 | 24 | August 20, 1993 (68) | |
 | 41 | January 8, 1975 (66) | |
 | 45 | December 8, 1995 (91) | |
 | 26 | February 13, 2002 (79) | |
 | 48 | September 19, 1959 (58) | |
 | 29 | September 21, 2010 (90) | |
 | 40 | March 26, 1990 (80) |