Transcript for Wounded Vets' South Pole Triumph
With much of the nation shivering, we thought we'd end the south pole tonight, where prince harry and champion veterans are facing ahearted fought victory. Here's bob woodruff. Reporter: It was supposed to be a race to the south pole. A competition between the americans, brits, canada and australia. All trekking 125 miles through some of the most extreme conditions on the planet. Among them, 12 wounded veterans struggling to make their way to the south pole along with prince harry, a military pilot who has served twice in afghanistan. But fighting temperatures as low as 31 degrees below zero and winds howling above 50 miles an hour, they cancelled their competition. Realizing instead they had to work together to win. I did have the opportunity to travel with prince harry on his previous arctic trip to the north pole. Is it okay if I call you prince harry? Call me whatever you want. Can I call you bob? Reporter: Yeah, that sounds okay with me. It was the same organization now trying to get to the south pole. It was walking with the wounded, a charity that provides rehabilitation services for wounded veterans. When faced with having to turn back on the 13-day march, they banded together. All in all, it has been a success. Reporter: Now as collaborators, not competitors. They're heading home, together, in triumph. Bob woodruff, abc news, new york.
This transcript has been automatically generated and may not be 100% accurate.