More than 10,000 volunteers will hit the streets of San Francisco tomorrow to make a five-your-old boy’s dream of becoming a super hero come true.

The boy, Miles, suffers from leukemia and his greatest wish is to be Batman for the day.

Make-A-Wish Foundation, in coordination with the city of San Francisco, is helping that wish become a reality through a variety of events planned throughout the city tomorrow.

Miles’ adventure begins on Nob Hill to rescue a damsel-in-distress from the Hyde Street cable car tracks. His next feat is to capture the Riddler in the act of robbing a downtown vault.

Following lunch at Burger Bar, Batkid will be warned by a volunteer flashmob that the Penguin has kidnapped Lou Seal and they speed away from Union Square.

Once he apprehends the Penguin, Miles makes a final stop at City Hall, where in epic fashion, Mayor Ed Lee, Chief of Police Greg Suhr and a huge crowd will congratulate his daring feats of justice and present Miles with a key to the city.

“For our chapter here in the greater bay area, we haven’t had a wish of this magnitude,” says Lynne Durie, operations director for Make-A-Wish Greater Bay Area. “We really knew that San Francisco would open its heart and it would be a great experience, but we never expected the volume.”

Durie says social media played a huge role in the event’s growth, even before an official media release.

“It got picked up in social media before we even release and it just took on a life of its own,” she says.

In addition to the event tomorrow, other Batman-themed tributes are in the works, including a comic book from DC Comics detailing his exploits and own musical theme created by Hans Zimmer, composer for the Dark Knight Trilogy.

Follow the action tomorrow on Twitter with #Batkid.

Find more info and details on how to get involved HERE.