Set in the fictional town of Skylin, Texas, each episode focuses on the same day over the course of three years: 1993, 1994 and 1995. The series follows two teenage girls: Kate Wallis is a beloved popular girl who one day disappears without a trace at the hands of new vice principal Martin Harris. Jeanette Turner is an awkward outcast who seemingly takes over Kate's life after she goes missing. Found alive a year later, Kate accuses Jeanette of witnessing her abduction but not reporting it, which results in Jeanette becoming the most despised person in America. Through multiple lawsuits and fractured families, friendships and relationships, everyone scrambles to pick sides as the true story unfolds.