Days after a police stop in Utah, Gabby goes missing and her parents alert the authorities, setting off a massive search for her — and for Brian.

Cast: Gabby Petito, Brian Laundrie, Jim Schmidt, Nicole Schmidt, Rose Davis, Jackson Hufham, Christopher Laundrie, Roberta Laundrie, Tara Petito, Joe Petito, Matt Carr, Norma Jean Jalovec