Radar Patrol vs Spy King (1949)

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 aptlynamed chapter 12 Day of Reckoning