Growing up in middle-class America in the 1940s is a confusing and sometimes painful experience for young Kay Hennings. Her stepmother, Amazing Grace, is a selfish woman who takes her unhappiness out on everyone around her. And for a little girl so concerned with pleasing others and doing the honorable thing, life with Amazing Grace is nearly unbearable.

Kay is determined to do her part for her country, and she strives to emulate the ideals put forth by her radio heroes, whose adventures she and her brotehrs eagerly listen to each day. But when the opportunity arises for Kay to do what is right for her country, she discovers that doing right is not always an easy thing.