Turn now to the american man held against his will in north korea. An 85-year-old grandfather has been detained for more than a month. Now his family is speaking out for the first time. A desperate... See More
Turn now to the american man held against his will in north korea. An 85-year-old grandfather has been detained for more than a month. Now his family is speaking out for the first time. A desperate plea to bring him home for the holidays. Bob woodruff brings us this story. Reporter: The face of a veteran, now held captive. Merrill newman's son describes the moment his dad was taken. They checked out of the hotel rg went to the airport, boarded the plane, and we understand were five minutes from taking off when a korean official came aboard, asked to see his passport. He's been there ever since. Reporter: For 85-year-old newman, a retired executive. A grandfather. This was his hope. To return to the land where he fought as an infantry officer all those years ago. But why was he take often the plane? And where is he being held? His wife certain it's a huge misunderstanding. We hope it will be resolved. Very quickly. And that he can return and be at our table for the holidays. Reporter: I've been to north korea five times. But never allowed to walk freely down the street. Always trailed by someone from the government. Merrill newman's son wonders if he, perhaps, was confuse d with someone else. He had been there before. About three years ago in south korea. But never to north korea. He always wanted to go back. He had a great respect for the korean people. And a keen interest in the korean culture. Reporter: The family's biggest concern is that mr. Newman's health is in trouble. He's got a heart condition and ran out of pills. More pills were given to the swedish ambassador through beijing. They don't know if he got them. Hopefully, they'll find out later today. Always great to see you, bob. Thanks. Now to the hered hot night of
This transcript has been automatically generated and may not be 100% accurate.