Get your first prescription free at anoro.com. Finally tonight here, our persons of the week. You may remember the story of how an entire American city secretly planned a superhero surprise for one... See More
Get your first prescription free at anoro.com. Finally tonight here, our persons of the week. You may remember the story of how an entire American city secretly planned a superhero surprise for one boy. But tonight, for the first time, we go behind the scenes with the parents and the dedicated team determined to give children their super powers. You're about to see why we named them our persons of the week. The famous golden gate bridge. The beauty of a city getting ready. Live trucks pulling into place. Batman suiting up. We didn't tell him anything about the wish. Miles' mom, Natalie. In on the secret wish about to be granted by make-a-wish. It was scary. Will it meet their expectations? Reporter: Miles on his way back from visiting relatives in Idaho. We went to Idaho. Out of cell phone service. Our phones just started blowing up. Even our ABC station, in on it. Gotham city needs you, Batman. This is police chief Greg serr, only hoping you can hear my voice. And just listen to miles. Finally there's a knock on the door. It was Batman, ready to pick up batkid. But, remember, miles had no idea. You better get dressed. It's funny because once he put on the costume, it was like he just did this. There he was -- their son transformed. Descending the stairs, the batmobile waiting. I'm like, "Okay, well, he needs a car seat because there's a lot of cops around." Pulling out. Batkid waving. The crowds. The office workers in their windows. 25,000 had gathered in the streets. And look at miles -- waving back. The first image on Twitter. The message from make-a-wish -- here he comes. Egypt, the Philippines. The white house. Way to go miles, way to save Gotham. Even our troops in Afghanistan. Aware of another hero back home. Saving the day. The mayor giving him the key to the city. And that fist pump. We met miles right after, who showed me how it's done. Tonight, batkid, back home, in remission. In the fields, on their farm. Still wearing that cape, and still wearing that smile. So we choose miles Scott and make a wish. Have a great weekend, good night. Tom Brady backlash.
This transcript has been automatically generated and may not be 100% accurate.