In a world poised on the precipice of the modern age, a revival preacher and his aide-de-camp follow a sign in the heavens to observe what they hope may be the birth of a miracle child.

When the babe turns out to not be what they expected, the witnesses disperse in disappointment, allowing the child to have a normal, late-18th century, California childhood.

When tragic events bring the preacher and the girl together twelve years later, the pair embarks on an adventure that leads them to the Big Island of the Kingdom of Hawai'i, where the girl's propensity for marvels begins to manifest.

Meanwhile, agents are searching for the mismatched travelers, each with their own agenda, including celestial beings gambling on humankind's ability to evolve.

Or not.