221 Ultra marathon runner at age 12

For his 12th birthday Colby Wentlandt asked his parents for a marathon.  Since then he's run two 50 mile races, a 50k and three 100 mile races.  He has yet to celebrate his 13th birthday.  We visit with Colby and his mother to talk about what he's learned, how he trains, what his doctor says, the feedback they get from other runners and medical personnel, things he does for fun and what he's thinking about in the future.    It's a fascinating look at a remarkable runner who happens to be 12 years old.