Transcript for America Strong: A Look at the Heroes Triumphing at the Invictus Games
of the week. 14 countries, hundreds of athletes, one unforgettable cause. Here's bob woodruff. Reporter: The second invictus games, and the heroes we will never forget. Retired marine lance corporal Sarah rudder. Tell me about this. Superwoman is one of the strongest women I know. And to know that a woman is known for her strength. I want to be known for that as well. Reporter: The mother saying the games mean so much to the heroes, too. This is wonderful. Reporter: This is one of the moments you don't expect. No, I didn't. Reporter: The games, created by prince harry, seen cheering on the sidelines the whole time. And we remember this moment. Active duty army staff sergeant Elizabeth marks, injured in Iraq. Asking prince harry to bring the medal back to the hospital that took care of her. How do you say thanks to the people that saved your life? That was the best way I could think. Reporter: The heroes, a reminder that the name of these games, invictus, means unconquered. And so we choose the invictus games champions. Thank you for watching. I'm Tom llamas. For David and all of us here, good night.
This transcript has been automatically generated and may not be 100% accurate.