The story follows a girl raised on an army post whose everyday life of parades and Red Cross work expands into wartime service when relatives arrive and orders send her to the front. Episodes trace her adapting to military routines, caregiving and first aid, friendships and farewells, perilous missions behind enemy lines, and aerial encounters, all presented in lively, episodic chapters. Scenes alternate between domestic preparation and battlefield hazards, culminating in her assuming greater responsibility and leadership amid the trials of war.