District 21 of the Chicago Police Department is made up of two distinctly different groups. There are the uniformed cops who patrol the beat and go head to head with the city's street crimes. And there's the Intelligence Unit, the team that combats the city's major offenses - organized crime, drug trafficking, high profile murders and beyond. These are their stories.
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Fathers and Sons 06x05
While undercover, Ruzek discovers his father is working for a suspected drug dealer and is forced to ask the question: is his dad involved?
Ride Along 06x04
A ride along goes sideways, and Burgess is faced with a difficult choice: follow the advice of Voight, or a potential new ally.
Bad Boys 06x03
Politics get in the way as the team tries to rescue a teenage girl kidnapped by a robbery crew. Voight and Platt try to exonerate Olinsky.
After discovering the true cause of the high-rise fire, Intelligence races to find the man responsible. And for Halstead it's personal.
New Normal 06x01
Bad heroin is causing overdoses in Chicago, and Intelligence is a man down with Voight suspended. Antonio takes charge, but Ruzek undermines his authority.
Episode 23 05x23
Tensions run high as Intelligence seeks justice for Olinsky after he's stabbed in prison. Antonio's loyalty is put to the test and Woods looks to take down Voight once and for all.
Halstead and Atwater go undercover to prevent military-grade weapons from hitting the street. Meanwhile, Voight calls in a favor as a last-ditch effort to clear Olinsky's name for Bingham's murder.
After Voight witnesses the kidnapping of a young woman with a mysterious connection to his past, Intelligence works to find a connection between her kidnapping and several bank robberies. Ruzek gets a tip that a grand jury has been summoned, putting Olinsky one step closer to standing trial for Bingham's murder.
A string of stash house robberies lead back to an unlikely individual. Voight confronts a key witness in the Bingham investigation.
Upton brings back an old undercover identity to help take down a meth ring spearheaded by a former criminal contact. And with pressure from Woods mounting, Voight calls in a favor for Olinksy.