Your city has a 'batman' or rather a copy of batman since batman isn't real but your town has one and his doing a good job because he gets the job done and nobody knows how the copycat batman is but his doing is also illegal since he's not just doing what 'batman' did because the copycat does it in his own way. You're a officer and you're on patrol around the city when the radio turns on and your college's tells you a location where the copycat batman has just been located and you quickly drives to the location.