Cold Squad - Season 4 (2000)

Ali works with a visiting Russian detective to connect the dots between the Russian Mob and a traffic accident that killed a Russian hockey player.

Mickey and Ali check out the story of a career criminal who wants to be sent back to prison for murder. Frank looks into a case that involved Nicco back in his undercover days.

Ali, Frank, Nicco, and Mickey try to connect a cold murder case to a massage parlor that employs immigrant women as indentured servants.

Ali and Mickey reopen a 12 year old case, which was originally judged a murder-suicide, based on the word of an arrested drug dealer. After a man reports being attacked by a dog, Frank investigates whether the dog-owner earlier had killed his wife by ordering the dog to attack her.

After the evidence against a rape/murder suspect is thrown out on a technicality, Frank must find another witness, and he must persuade the witness to come back to Canada to testify.

Mickey is severely beaten while trying to make an arrest with Ali. Frank and Nicco investigate a death within a polygamist family.

Ali and Mickey look into a three-year-old suicide case when a letter surfaces taking credit for pushing the victim off a bridge.

Mickey and Ali investigate the connection between a woman's murder outside an antique shop and a car chopping outfit.

Frank and Nicco are stripped of their badges over the drug probe.

Frank gets personally involved in a seven year old case when a man comes to collect the personal effects of his father, who was awarded the Victoria Cross for his heroism during the Normandy Invasion in 1944.

The building is locked down after two prisoners overpower their custodians, take a weapon, and shoot an officer.

Ali and Frank interrogate Danny Cullen, a former undercover cop, about the murders of two bikers and an RCMP undercover officer.

A pedophile comes forward and confesses to the murder of a boy 20 years ago, and he then tries to claim the reward the parents had put up to find their boy's killer.

Ali and Frank are stuck on a quarantined Polish ship while investigating a crew member's suspicious death, which resembles the death of another crew member whose body washed ashore four years before.

The investigation into a prison inmate's killing by a guard who was under the care of a high-profile self-help counselor is complicated by the fact that Mickey is also a client of the counselor. Christine's brother is brought in on a petty beef, and she arranges his release.

Ali and Mickey are called to the scene when a mutilated body is discovered by a man driving his SUV off-road. Sam later identifies the body as a man Dean Bulmer was convicted of killing on the basis of another body Sam mistakenly identified.

A store clerk is murdered after Dean Bulmer is released, and Ali is blamed by the other detectives because she questioned the validity of the case.