Susan Powell, a 28-year-old mother of two, goes missing in December of 2009. Her husband Josh claims to have taken their two young sons winter camping in the Utah desert and says he returned the next day to find her gone. Questioned by detectives, he doesn't behave like a concerned husband and his version of events doesn't match his son's. The mystery about where Susan's is deepens as more details about her marriage to Josh and their life behind closed doors emerge. Susan's family and friends do everything they can to find her while Josh insists that she ran out on him and their two little boys. The search for Susan Powell plays out on a national stage with everyone wondering: did she run off? Was she taken? Is Susan Powell dead or alive?