Da Vinci investigates the death of a man who was crushed by a parking-garage door. Meanwhile, Shannon and Leary search for suspects involved in a suspicious death.

Kosmo investigates the fatal shooting of a drug dealer. Meanwhile, Da Vinci has difficulty with his house-fire investigation, and Leary and Shannon search for suspects in a gas-station robbery.

While Da Vinci is concerned about a potential surge in elderly deaths, he receives a surprising proposal. Meanwhile, Kosmo and Leary investigate a body found in a grow op house.

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 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.