It was late summer 1992, and Tammy Jo Zywicki was driving from suburban New Jersey to Grinnell College in Iowa. But what started as a routine trip took a mysterious turn when the 21-year-old’s car was found abandoned on the side of a busy highway. As a massive search effort for the college student gets underway, Tammy’s loved ones are left wondering about her fate: Where is she? What happened to Tammy Jo Zywicki?