the famed cable tracks. he was summoned by the police chief. bring the bat kid. reporter: there was even a bat signal and with the citizens of goth m cheering him on, little miles went to save the san francisco s mascot luceal from the penguin. nicely done dynamic duo. you saved the city. reporter: the san francisco chronicle printed a special edition, bat kid saves city. the president gave him a shoutout on vine. way to go, miles. way to save goth m. reporter: if it wasn t for bat kid, i guarantee you these two villains would still be at large. the kid of goth m city by the bay. reporter: 5-year-old miles got a key to the city at a special ceremony but the people here got something more. today they didn t leave their hearts in san francisco, they gave them to little boy who