Business becomes personal for Frank and his 1 Police Plaza team when Baker is assaulted on the street, as well as for Erin, when she asks her ex-husband to represent a defendant she’s prosecuting. Eddie wonders if she’s being too stubborn after she publicly undermines one of Jamie’s decisions at work. Danny and Baez investigate the attempted murder of a couple with huge secrets.

Mac and Desi travel with Bozer to his childhood home when his aunt dies in a tragic accident, and soon discover she may have been murdered for trying to expose the city’s contaminated water supply. Riley, Matty and Russ continue to follow leads on their nano-trackers investigation.

Red enjoys a quiet visit with a friend at her home in rural America.

Jimmy pens his weekly Thank You Notes, teams up with Tariq Trotter to take on Ciara and Russell Wilson in the Jinx Challenge, speaks with Eiza González about Godzilla vs. Kong and enjoys a music performance by Jon Pardi.

After waking in the Dark Realm, Jack is sent through a portal with only the words “Kill The Dark One” to guide her.