Kickin It (2011)

Milton accidentally stops a robber in his tracks at the mall. Joan the security guard awards Milton with a badge and makes him an honorary security guard, which at first goes to Milton's head where he daydreams about being a Captain America-type hero. Reality puts Milton against a group of robbers in the dojo that have defeated all who have come against them. Milton must power-up for real to save the day. Also, Rudy wants to learn to skateboard, and it's up to Jack and Kim to teach him without killing him.