The Blue Beetle goes up against a mad scientist with an "ice gun" who captures Joan and Mike.; A boy becomes the target of murder attempts after uncovering a hooded bank robber's secret.; A mortally wounded Agent V-19 tells the rest of the V-Group he has found the location of the radio station that is broadcasting defense secrets. V-Man joins Agents V-66 and Ginger Dare in capturing Schutz, the German commander.; The Blue Beetle must fight a crime lord who wears a green skull mask and seems to be able to kill by pointing his finger.; Blue Beetle solves a case of Japanese infiltrators killing soldiers on leave by placing mechanical beetle weapons in their houses.; Spark and Chuck rescue a radio operator from fascist Italians who were forcing him to aid their cause.