Her mission is to help Tom summers, a struggling columnist for an expanding magazine empire in Los Angeles--to Homer, the epicenter of Western egocentrism and inauthenticity. She must help him publish a book that would ultimately change Earth's fate. Unsure how to accomplish her task, she wants more of God's help or for Him to send Tom a sign, but always a stickler for free will, God won't let her interfere with humanity. Still, it's up to her to save the world, she believes God is against her, and time is ticking. No pressure.
Left to her own devices, Homer wonders whether humanity is worth saving. She believes humans to be violent, self-centered brats. Earth itself is a trash heap, already polluted by all of God's chosen people. Is there anything left to save? Tom, along with some other eccentric Earth-walkers, might change her perspective, but in the end, the fate of the world rests in Homer's angelic hands.