 Frustrated that the United States did not seem to be dealing with crime or Nazi saboteurs, radio operator Jerry Carstairs created a costume with a built-in microphone and fought for justice as the Thunderer.In his first recorded appearance, Jerry learned that radio station WWLX was really a front for Nazi Fifth Columnists who were transmitting secret messages hidden in music.Learning that they were targeting his girlfriend Eileen Conroy, a newspaper reporter, foiled their operation.