On Tonight

A case close to home when the intelligence unit takes on a gang shooting with one living witness, Olinsky’s daughter.

Halstead is in hot water, his job in jeopardy as intelligence investigates the murder of a doctor who helped jail many heavy hitters.

When a young woman is found dead in a field on the outskirts of Green Bay, Wis., a fitness tracker helps detectives solve the mystery.

The investigation into a businessman's murder leads to an arrest, but as friends and neighbors rally around the accused, it begins to look like they have the wrong man.

Alicia becomes embroiled in tricky office politics when she's asked to represent the firm's senior partner after his arrest.

Alicia looks into the motives of a judge with a history of questionable sentencing, and Diane is made the offer of her career

Horatio and his team investigate when a man is pushed and falls into a tank containing box jellyfish.

The CSIs investigate when the body of a census worker is found in a car.

A terminally ill bank robber enlists accomplices to assist him with committing his final robberies.

Goren and Eames stumble upon a web of corporate corruption.