Da Vinci is challenged by the father of a young woman killed in a fire. When a squeegee kid is killed, Shannon and Leary don't have much to go on except the observations of an unreliable witness.

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 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.

After a death in Stanley Park Da Vinci is forced to deal with the media response. Meanwhile, Kosmo and Leary investigate a man's body discovered on a tour bus.

The team investiages a man found hanging in a vacant house and an elderly man found dead in the woods.

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.

Da Vinci begins to suspect that a widespread conspiracy is protecting the Mayor in the hit-and-run investigation. Meanwhile, a murdered drug runner turns out to be a childhood friend of Leary's and Kosmo's relationship with Sue attracts the attention of Internal Affairs.

While Da Vinci remains at odds with the Mayor and Police Chief he attracts attention from Ottawa. Meanwhile, Leary and Kosmo discover that a murdered drug runner was under police surveillance and Shannon's reaction to a personal loss puts his job in jeopardy.

Da Vinci must get the support of the mayor and police for his red light district proposal. Meanwhile, Sue is secretly interrogated by Internal Affairs and Angela desperately tries to get her.

Da Vinci manipulates both sides in the upcoming race to his own advantage. Meanwhile, Brian and Rose investigate the suspicious suicide of a key witness.