Marc and Gracie Hadden recently returned to the unusual place where their special daddy-daughter bond first took hold, the back of the ambulance where she was born. Their story began in November 2011 when Hadden, then a firefighter and EMT, was responding to a 911 call about a woman with severe abdominal pain. They arrived to find the woman was pregnant, and Hadden helped deliver a baby girl in the back of his ambulance. Within 48 hours, he adopted the baby girl, and the Haddens went from a family of four to a family of five. #InsideEdition