For more than 25 years, Dateline has brought viewers investigations into some of biggest mysteries in America. This entry in the franchise takes a second look at some of the most mysterious cases of recent history. It explores the stories through firsthand accounts told by people who are close to the crime, including investigators who dedicated their time to the cases and family members who are still trying to confront the tragedies that befell their loved ones.

In this true-crime documentary, a cult expert and filmmaker infiltrate a polygamist sect to expose a self-proclaimed prophet and bring him to justice.

In interviews and rare home video footage, ex-FLDS members share the truth about their isolated community — and the events that pushed them to leave.

A look from the inside out at a community that was led for decades by the now imprisoned religious prophet who controlled many to quell his demands and desires.