Encounters in the parallel lives of an herbivorous sauropod named Alpha and a carnivorous theropod named Dragonfly are chronicled. Hatched in the same season, Dragonfly and other predators pursue Alpha her entire life often taking her siblings an cousins instead. Alpha survives to mate and reproduce but her first clutch of eggs and those of her entire herd are buried in a flood creating an incredible fossil field that revealed many secrets of the sauropods' reproduction behavior.
—David Foss