Beautiful Krissy Donovan, a student of Annie Oakley, is asked to put on a sharpshooting benefit for an orphanage. The trouble is, it's half a continent away. Her father has promised her services, and she finds herself virtually alone in perilous Indian Territory. Krissy's father realizes he has made a terrible mistake, but a cavalry scout, familiar with the savage land, is the only one who can protect Krissy now.

Rough-and-tumble cavalry captain Johnny Houston resents being asked to take on this last assignment of playing nursemaid to an eastern debutante before he musters out of the army. Johnny understands his duty as a soldier, so turning the order down is out of the question. With a killer stalking them, Johnny has to keep his mind on Krissy's safety, but an attraction to his stubborn charge could end up compromising his heart.

Memories of his own harsh childhood at the same orphanage haunt him. He has no choice but to make a stand for the children, or some of them won't survive. Krissy dares to hope she can help in some way, even though it means giving up the lavish future that has been planned for her since birth.

How far will Johnny go with his dangerous rescue plan? Where does Krissy fit into his life? The strange arrival of a beautiful pink pistol with the legacy of its creation may help them survive the deadly odds against them in LOVE UNDER FIRE.