It's a mystery that has America baffled. An Idaho teenager and her younger brother with special needs vanish and haven't been seen by anyone since late September, 2019. Their mother, Lori Vallow, has been arrested in Hawaii, but isn't cooperating with authorities. Adding to the mystery, four untimely deaths surround Lori and her newest husband, Chad Daybell, yet Lori refuses to say a single word regarding her children’s whereabouts. How could 17-year-old Tylee and 7-year-old JJ have gone missing without a trace? Today, the children's family members speak to Dr. Phil. Don’t miss it!