Robbery Homicide Division

Cole investigates two seemingly unrelated crimes, a drive-by shooting outside a Koreatown nightclub and the massacre of a family in Van Nuys, becoming convinced that the crimes are related and that the same cop may be involved in both.

Cole and his team go into action when a veteran police officer and his trainee are gunned down in their squad car while on dinner break at a mini-mall.

Cole and his team delve into the world of high-end escort services and Internet sex when the dead body of a call girl is found on a hillside, apparently the victim of a serial rapist turned murderer.

An ex-con tips off RHD that three bodies were dumped into a nearby river -- three bodies whom seemingly had no loved ones to report them missing.

When an R&B singer is kidnapped following a barroom brawl, RHD's investigation takes them into the world of rap moguls.

The body of a well-known talent manager turns up in his swimming pool the morning after a big bash is thrown in his honor, but no one at the scene wants to talk to RHD.