You know it's the people of this country who make America great whether they are young or old or this case both. You're about to hit a friendship created by kindness one -- into tragedy the other kind... See More
You know it's the people of this country who make America great whether they are young or old or this case both. You're about to hit a friendship created by kindness one -- into tragedy the other kind of Angel swooping down. Both defining America strong NBC's Josh -- -- are the unlikeliest of pairs. 22 year old Colin Smith and 72 year old Ernest green known to all here at High Point University. As a package deal only -- have a lot of fun. Just prior to his freshman year high school -- a -- three sport athlete was involved in a horrific car accident. Which left him paralyzed from the chest down. When did they tell you what it happened and how about a month's service came in and rules like -- hey and it you know walking hand basically. Your life has been stopped and you have to. -- -- -- -- Green a recently retired engineer heard through his church about the accident and felt what he says was calling to help call it. Who -- never met so we called Collins family offering his services to the boys overwhelmed parents. No one could have seen the remarkable journey almost eight years in the making. That was beginning green put in twelve hour days leaving his home before dawn to get to Collins house by 6 AM. You would think -- call and out of bed and ready for school and they make the 45 minute drive to High Point University. Attending classes where and taking notes for Collin all -- pushing him three miles a day or more. The -- feel sorry form. Chromosome but. I'm also felt like he could do what -- wanted to do and just weeks ago Colin graduated from college. Of course it was earnings pushing -- on -- that's. I think we mold it for yourself -- we should look -- -- -- -- problem. Green was surprised with one of his own. It's harder. For two men who -- the better part of the decade have come to a body together. But it needs to. There at this girl yes I was going to be a package deal. Without him -- when he got -- -- needed to. The year where -- It's takes a lot. It gets invited to be. Global. And leave they can do things do you think about the love that he's had renewable of the you have. For him -- quantify it really don't. Have a way to measure. Once again -- -- -- -- you can't it's hard to describe what will we mean each other Josh LA BC news High Point, North Carolina.
This transcript has been automatically generated and may not be 100% accurate.