The team handles high-stakes cases involving kidnapping, gang violence, and serial killers, while dealing with the personal fallout of undercover assignments.

Intelligence tackles the growing epidemic of illegal firearms and opioid trafficking in Chicago while navigating shifting relationships within the precinct.

Voight's leadership is pushed to the absolute limit following a personal tragedy, forcing the unit to question their methods and loyalty.

With Antonio Dawson facing personal demons and new oversight altering daily operations, the team fights to maintain order on the streets.

The Intelligence Unit faces intense scrutiny from a new police reform mandate while handling brutal gang wars and personal betrayals.

The officers navigate the complexities and challenges of modern policing during a time of immense social change and accountability.

The fallout from a dangerous undercover operation threatens to tear the unit apart, pushing Halstead and Upton to their limits.

The team mourns significant losses and welcomes new faces as they hunt down a ruthless, elusive drug kingpin targeting the city.

A shortened season following industry strikes, focusing on intense character-driven narratives and emotional farewells.

The Intelligence Unit returns to face new criminal syndicates and internal changes in the ongoing battle for Chicago's safety.