The Intelligence unit discovers that the patient extracted an RFID chip from her body related to a trafficking ring.

Joe Cruz reveals the firefighter behind the missing key from the firehouse lock box.

Complications arise when Voight tries to track down one of Kelton’s drug dealing confidants who might be the key to take him down and he turns up murdered.

Meanwhile, evidence becomes clear from Internal Affairs that Ruzek has been lying and trying to cover up for Dawson’s actions.

On April 19, 2019, NBC announced that Jon Seda would again depart the series at the end of the sixth season due to creative reasons.