Special Agents Maggie Bell and OA Zidan investigate the death of a safety inspector and its possible connection to a leak at a nuclear power plant.

Philip and Elizabeth must stop an assassin from taking out key US scientists, while Stan and the FBI hunt the same man. Grannie shocks Elizabeth with the truth of what…

Severide begins his assignment at the Office of Fire Investigation and gets off on the wrong foot when, despite his orders, he reopens an old case. When the cause of…

When Claire receives a phone call that may lead her to find her son, the FBI and Ryan Hardy set their next move into motion, causing panic at the farmhouse….

Finch’s number comes up when a fatal error blows his cover identity and sets off a deadly series of escalating encounters with Samaritan’s operatives.

“TGS” is forced into hiatus, spurring the show’s staffers to seek backup jobs. Meanwhile, Jack tries to rescue a cable network by forging an unlikely alliance with his archenemy, Devin…

A deadly drunk-driving car accident brings Detectives Cyrus Lupo and Kevin Bernard to the scene when a suspicious nasal spray is found. After the medical examiner realizes the nasal spray…