Savannah Guthrie says family in 'agony' in first interview since mother Nancy's disappearance

"Today" anchor Savannah Guthrie said her family is in "agony" in her first interview since her mother, Nancy, was taken from her Arizona home and reported missing on Feb. 1. 

"Someone needs to do the right thing. We are in agony, we are in agony," a tearful Guthrie told co-host Hoda Kotb Wednesday in a preview of the interview that will air over the course of the week. 

Nancy Guthrie's case has dominated headlines for weeks, but authorities have been unable to find her in the suspected kidnapping.