Six-year-old Nico Castro from San Bruno, Calif., isn't letting his battle with brain cancer affect his spirit of giving this Halloween.

After his doctor gave him the green light to go trick-or-treating thanks to a break in his chemotherapy, he began worrying about the other kids in the cancer ward who remain confined to beds.

"I was sad they wouldn't have candy (or costumes)," Nico explained.

His parents were moved by his thoughtfulness but financially unable to buy costumes for the 50 sick kids, due to the financial burden brought on by their son's diagnosis.

So in true superhero fashion, Nico started a costume drive.

"We were so surprised from the support outside of our community," said his father. "Packages of costumes are coming from Pennsylvania, Illinois and Texas."

(WATCH the NBC video below, or READ the story from Intent Blog)