Cameron and Kay investigate a secret society where they learn that one of them has a close family connection.

Frank goes on high alert when a threat to New York City may be imminent following a terrorist attack in the Middle East.

Casey faces pressure to cover for a cop’s son, who was responsible for a drunken-driving accident that left a teenager paralyzed. Meanwhile, Severide ignores his doctor’s warnings that his neck…

Severide is hiding a serious shoulder injury sustained in the fire that killed Andy Darden, and grapples with his guilt as he fights to rescue a construction worker trapped in…

Blair and Chuck face-off when the both set their sights on an item up for bid at Sotheby’s. Serena begins to think that Carter may have returned to his old…