After Savannah Mast's fiancé dumps her a week before their wedding, she flees California for the safety of her Amish grandmother's farm near Nappanee, Indiana, where she used to spend her summers. Savannah intends her stay to be brief, but when an Amish woman goes into labor in the middle of a blizzard and needs Savannah's help, she finds herself unexpectedly entangled in their family's drama. The woman's oldest daughter, Miriam, goes missing and Savannah's childhood friend Tommy Miller is implicated.