A deadly May 2021 plane crash in Tennessee draws public attention to the mysterious Remnant Fellowship Church and its founder, Gwen Shamblin Lara; Gwen founds a church that some experts, neighbors, and former members believe is a dangerous cult.

In 2018, Gwen marries struggling actor and aspiring country singer Joe Lara, raising questions about the odd couple's checkered past; with close ties to Remnant, Joe's legal team helps wage a bitter custody battle for his young daughter.

After a mysterious accident claims the lives of Gwen, Joe, and some of their inner circle, former Remnant members grapple with the leader's complicated legacy, and new voices come forward for the first time.

As the Remnant Fellowship fights to control the narrative, footage of a never-aired reality series pilot surfaces, casting new light on the ways Gwen shaped her image and the lives of those who followed her.