Isabella Cruz just wants to be normal, but social anxiety is a cruel master. When she moves to Sweet Grove, Texas with her dad, the only thing she wants to do is hide, but the people at First Street Church won’t allow it.
First Street Church's youth pastor, Elise, taps Josh Houston, another homeschool kid, to show Isabella around town. He is intrigued by the new girl, but his mom forbids him from hanging out with her.
Josh’s mom, Claire, can’t understand why no one else is concerned about the new danger infiltrating Sweet Grove. They are all too enamored with the new family. Since no one reacts to her cries of warning, it is up to Claire to make sure none of the First Street Church kids go missing — including her son.