Halstead goes undercover to stop an ex-military kidnapping crew from killing an innocent child.

Intelligence investigates a twisted case involving a congressman caught with a dead girl.

An aspiring Playboy model is brutally murdered in Miami after visiting a nightclub with her boyfriend.

Ciara decided it was time for a fresh start...

A teenager is convicted of encouraging her boyfriend to kill himself.

An in-depth description of the capture of Saddam Hussein.

Clues as to where Serena might be are uncovered that could turn Boden's case around and Captain Patterson has news for everyone.

The firehouse is shocked to discover that one of their own becomes the surprising victim of a stabbing and an attempted suicide raises some questions.