SAN FRANCISCO (KGO) -- San Francisco transformed into Gotham City for a pint-sized superhero on Nov. 15, 2013.
The city and nation went crazy for 5-year-old Miles Scott, who was fighting leukemia.
Make-A-Wish Greater Bay Area helped him become Batkid for a day. And his story was so moving, it became a documentary.
In case you're wondering - Miles is now 9 years old and is doing great.
He's now been in remission for four years!
Click here for the latest stories, photos, and videos on Batkid!
PHOTOS: Batkid plays hero for a day in San Francisco
FROM THE ARCHIVES: Batkid saves San Francisco in Nov. 2013