Zara Nash saves Marshal Zane Dunn. Zane recognizes her, forcing marriage by threatening her family and fiancé Milo Hale. Zara hates him. Zane's adopted sister, Yvonne Wood, frames Zara. Zane saves her; they fall in love. Yvonne and Charles Chang attack. Zara uses medical skills; Zane eliminates enemies. Zara becomes pregnant. Zane is injured; Zara operates. Yvonne and Charles are executed. Zara gives birth; Zane becomes a gentle husband.