When life gets complicated, Grace Graham runs. But now her sister, Jana, is giving her one last chance. She wants Grace to come back to Shoal Creek, Tennessee, to help their father recover from surgery -- and maybe even to mend a few fences. With her four-year-old son, Dylan, in tow, Grace returns home from California to find that life in Shoal Creek seems more backward than ever. Is she returning for the right reasons? Then the unthinkable happens: her son is diagnosed with measles, and Grace"s fears over modern medicine take a dangerous turn. Even worse, the whole town has been forced into quarantine and the locals focus the blame -- and their anger -- squarely on Grace. Grace feels alone and frightened. Her modus operandi is to run -- until one brave woman chooses to reach out to her. But when the outbreak takes a life-threatening turn, will Grace be able to forgive herself?