Da Vinci investigates the death of an ex-cop turned boxer. Meanwhile, Mick and Angela, investigate a body found in a house.

A woman finds her husband dead from an apparent suicide. Meanwhile, Kosmo and Leary investigate a body found in a parking garage.

Da Vinci tries to piece together an apparent murder/suicide. Meanwhile, Shannon and Rose investigate a severed head found in a bucket.

Da Vinci examines the scene of an industrial accident. Meanwhile, Shannon and Rose investigate when a woman dies in an ambulance en route to the hospital.

Da Vinci investigates an overdose, while resisting pressure to use grief stricken parents to further his bid for Chief of Police. Meanwhile, Shannon and Rose call in Kosmo and Leary when a homicide is connected to their case against Brian.

Da Vinci prepares for his interview in front of the police board. Meanwhile, Shannon investigates the murder of an American journalist.

Da Vinci investigates a hit-and-run involving the mayor's car. Meanwhile, Leary & Kosmo looks into the suspicious beating death of a drug dealer.

Da Vinci investigates the death of man who fell off the roof of his apartment building while attempting to steal cable. Meanwhile Kosmo and Leary uncover a witness in the police beating of a young drug dealer. Later, Zack and Da Vinci uncover some startling news about the mayor.