Turk 182! (1985)

"Who said you can't fight City Hall?"

Plot Summary

After New York City firefighter Terry Lynch is unable to receive any compensation for an injury incurred during the off-duty rescue of a young girl, he grows suicidal. Furious, his brother Jimmy attempts to have Mayor Tyler intervene, but the corrupt politician instead denounces Terry as a drunk. Determined to get justice, Jimmy begins a graffiti campaign of embarrassing slogans mocking the mayor, which soon captivates the city.