Tensions run high as Voight takes extreme measures to find justice for Olinsky after he's stabbed in prison, which puts Antonio's loyalty to the test; meanwhile, Woods seeks to take down Voight once and for all.
S5 E21 | 05/02/18
Olinsky is arrested, leading Voight to call in a marker with a powerful figure in order to help his friend; meanwhile, Atwater and Halstead work undercover to keep military-grade assault rifles off the streets.
S5 E20 | 04/18/18
When a young woman from Voight's past reaches out to him just before being kidnapped, Intelligence works to find a connection between her kidnapping and several bank robberies; meanwhile, Ruzek gets a tip that a grand jury has been summoned for Olinsky.
S5 E19 | 04/11/18
Intelligence investigates a string of stash house robberies, leading the team to suspect a dirty cop is working in narcotics, and Voight takes extreme measures to protect Olinsky.
S5 E18 | 03/21/18
Upton resumes an old undercover identity to take down a meth ring run by a criminal contact who she has personal history with, causing Halstead to worry about her emotional investment in the case; meanwhile, Voight makes a sacrifice to help Olinsky.
S5 E17 | 03/14/18
While Intelligence investigates the death of a prominent alderman whose murder may be tied to his neighborhood revitalization efforts, Olinsky receives an ultimatum from Woods that could drive a wedge between him and Voight.