A riveting police drama about the men and women of the Chicago Police Department's District 21 who put it all on the line to serve and protect their community. District 21 is made up of two distinctly different groups: the uniformed cops who patrol the beat and go head-to-head with the city's street crimes and the Intelligence Unit that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond.

Carmy, a young fine-dining chef, comes home to Chicago to run his family sandwich shop. As he fights to transform the shop and himself, he works alongside a rough-around-the-edges crew that ultimately reveal themselves as his chosen family.

The fates of an aging hitman and a washed up detective become entwined when one last job leads to one last chance to settle an old score.

Now in his sixties, Joe is released from the hospital after a long battle with pneumonia and forced to confront the harsh reality of his legacy: everyone he knew had assumed he was dead, and life had gone on around him without missing a beat. Returning to his old neighborhood in Chicago's 'Patch' district, he finds his car gone, all his worldly possessions pawned by his landlord, and the apartment he's lived in his entire adult life rented out to a single mother and her eight-year-old daughter.

A psychiatrist attempts to cure a patient who thinks he's the son of Zeus, while dodging the mental ward himself.