When Tom Foley becomes the top suspect in his wife's murder, he spends the next two years trying to prove his innocence.

Bill Hall was gone, but Frances swears his death did not happen the way Bonnie described to police.

The firehouse struggles with Darden’s death.

Casey is pressured to cover up for a drunk driver

An Assistant District Attorney is found raped and murdered in Central Park, and the detectives trace the heinous crime to a sex offender she prosecuted.

A wealthy young woman with a predilection for kinky sex is found dead after an apparent sex game gone awry.

A string of identical murders becomes personal when Voight’s friend falls victim to the gunman.

With Bembenek behind bars, intelligence learns that it’s not just Halstead in harm’s way.