And this storm being called 1,000-year storm by many. And you won't get an argument on that, from that driver rescued that I mentioned just a moment ago. As so many watched it unfold live on tv.... See More
And this storm being called 1,000-year storm by many. And you won't get an argument on that, from that driver rescued that I mentioned just a moment ago. As so many watched it unfold live on tv. Tonight, we hear from him, an astonishing tale of survival. Abc's clayton sandell on what he did to survive inside that car. Reporter: It was almost roy ortiz's last commute to work. This is the underside of ortiz pontiac grand prix, plug into the rapids thursday when he was on his way to work and flash floods tore away the road beneath him. For two hours, the father of four was trapped and sinking. I pray, because I wanted to survive. Reporter: One of the first to arrive, firefighter john cook. We kind of pounded on the bottom of the car. And the rescue people look at me and I just, take my hand so they know I'm alive. Until we saw his hand waving at us in the window, we didn't know that anybody or how many people were possibly trapped inside the vehicle. I know, when I hear those people, I feel happy. Reporter: Ortiz was caught in in a driver's worst nightmare. One, where the road suddenly becomes a river. All it takes is six inches of water, and you can start to lose control. More than a foot, you can start flo floating. As cook and his team worked quickly, ortiz tried to calm himself by thinking of his family. A pocket of air helping keep him alive. Today, roy left the hospital. I'm feeling good thanks to the guys and my family. And the rescue people that saved my life. Reporter: Clayton sandell, abc news, lafayette, colorado.
This transcript has been automatically generated and may not be 100% accurate.