A month after Voight's close brush with passing, Intelligence is overwhelmed with cases as they catch a high-stakes drug bust.

After tragedy strikes Intelligence, the unit must persevere during an adrenalized manhunt across the city.

Atwater struggles to find balance as he teams up with a forensic psychologist on an armed robbery case.

Assistant State's Attorney Chapman assists Intelligence with a sensitive investigation that drudges up painful memories for Voight.

In the midst of a momentous rainstorm, Intelligence lends support to Officer Cook when she and her partner disagree about an investigation.

Burgess is put to the test as she looks to make an advancement in her career.

Torres is haunted by his previous transgressions as Cook takes on a tense undercover assignment.

The unit learns the truth about a secret Torres has been keeping, as Deputy Chief Charlie Reid puts a focus on Intelligence.