A former WWI ace pilot and his wingwalker wife barnstorm across Depression-era America, performing acts of aerial daring.
"They were over Georgia somewhere, another nameless hamlet whose dusty streets lay flocked and trembling with the pink handbills they'd rained from the sky that morning, the ones that announced the coming of DELLA THE DARING DEVILETTE, who would DEFY THE HEAVENS, shining like a DAYTIME STAR, a WING-WALKING WONDER borne upon the wings of CAPTAIN ZENO MARIGOLD, a DOUBLE ACE of the GREAT WAR, who had ELEVEN AERIAL VICTORIES over the TRENCHES OF FRANCE."