Ben Sullivan and Amy Lynch are assigned to the murder of an attractive woman, shot dead at close range, and their investigation reveals that she had ties to an escort service.

In the first moments of the series, Ben is bonded in blood to his tough, beautiful partner, Amy Lynch, when the two are involved in a shooting that they must cover up together.

Terry and Holl investigate the death of Wendy Summers, a heart transplant recipient who died as a result of the transplant. They try to find out about the transplant, about which her husband Brian Summers doesn't seem to be totally truthful. Meanwhile, Ben and Amy investigate the murder of Dr. Wen Zhang, his body stuffed in a laundromat washing machine. Dr. Zhang, who was not yet accredited in Canada, was a prominent Chinese national with a wealthy Canadian wife, Amanda Fleming. Because of his status, the Chinese Embassy wants to be involved peripherally in the investigation, that against the wishes of Ben and Amy. The questioning one of the laundromat employees, Zan Ji, also a Chinese national and an illegal immigrant, leads Ben and Amy to 'Brother' Reggie Song, a local notorious drug dealer, and a container shipment of his, the container which they assume is filled with drugs. When Ben and Amy discover what is actually in the container, they find a connection to another case in their office, which leads to the question of why one of their witnesses lied to them. And at the Sullivan home, Ella finds evidence of a woman in Ben's life named Naomi. In tracking down Naomi, Ella finds that the connection relates back to "Harry", one of Ben's alternate personalities.

Ben and Lynch investigate the multiple homicide of a group of teenagers that appears to be gang-related. There is a witness, but she’s not talking.

A recent explosion at an engineering firm may be connected to other bombings up the coast, and the detectives are called in to support the feds' investigation.

A woman's body is found floating in the ocean.

Detectives Sullivan and Lynch go undercover to an after hours nightclub when the heist of a high stakes poker game ups the ante, leaving one gunman dead and the other missing.

While two prisoners are being transferred to the city jail, one of them manages to get hold of an officer's gun and creates a dangerous standoff with the Homicide detectives.

A brutal sexual assault and murder has eerily similar characteristics to an earlier unsolved case Lynch worked on, and she is convinced she knows who the killer is.

A girl discovers her mother brutally murdered and Ben suspects her estranged older brother may have had something to do with it.

Two professional hit men open fire on a groom and guests at a wedding celebration

The homicide detectives investigate a twenty year closed case when twenty-five year old Sophia Bacic now believes she witnessed the murder of her older sister, Josie Bacic. Two youths, friends Gil Dobeck and Matthew Evans, who were present at the crime scene by the Fraser River, were convicted of the murder, and sentenced to life.

The murder investigation of a closet pedophile provides a link to Ben Sullivan's missing son and a frantic search ensues to locate him.