Transcript for 'Ice Bucket Challenge' Making a Big Splash for ALS
Now to an image being repeated across this country, all of it to raise awareness about a rehabilitating disease. Reporter: Does your summer family reunion look like this? Across America tonight, it just might. There they are, the Kennedy clan from youngest to oldest on cape cod dousing themselves with water. At the end of the line there, even Ethel Kennedy with a little help. It's not just the kennedys, it's across this country. One of the stars of the biggest summer movies this year, the fault in our stars, opening up the ice bags and then dumping the ice. Oh, my god. Reporter: Even the patriots cheerleaders. Listen to their explanation. What do we want to do? Strike out als. Reporter: Grab a bucket of ice water and dump it on your head and challenge somebody else to do it. The social media phenomenon erupted when friends and family of college baseball captain 29-year-old Pete frayties began challenging everyone they knew to make a statement while shivering. His father proud. It just proves the goodness of human beings and the power of people, the power of pos tifl. Reporter: That former baseball captain's wife. This isn't just your elderly grandfather that gets als. It can be young people. Reporter: He was diagnosed two years ago. The former all star is paralyzed now and can't speak on his own, but his message has touched so many. The Massachusetts chapter of the als association telling us tonight they've been flooded with calls, donations, up a stunning 6,000%. Tonight Brady's family is overwhelmed. Who knew that all we needed really was a bucket and a bag of ice to create all the awareness we needed. There is still much more ahead on "World news" this
This transcript has been automatically generated and may not be 100% accurate.