Chicago PD season 7, episode 4 recap: Infection, Part 3

Chicago PD concluded the One Chicago crossover in Infection, Part 3. Find out what happened in our Chicago PD season 7, episode 4 recap.

This week’s Chicago PD served as the final part of the latest One Chicago crossover, and no one can argue that it didn’t end the “Infection” storyline on a dramatic note.

The third chapter of “Infection” begins with Jay Halstead (Jesse Lee Soffer) and Hank Voight (Jason Beghe) chasing the evil doctor through Chicago Med, while the rest of the hospital is alerted that there’s an “active security threat.” But Dr. Seldon has already gotten in his car and left. Again, yay for sub-par hospital security.

Voight returns to the district, where Trudy Platt (Amy Morton) tells him that two of the quarantined patients are still at large too, and about the riot that Firehouse 51 just broke up. She rallies all of the uniformed officers to look for Seldon, who may have gotten on a train. Or he may not. But not only do they not know where he is, they don’t know why he’s doing this.

Cue Vanessa Rojas (Lisseth Chavez) with the exposition: the guy’s personal life fell apart a few months ago. Did it cause him to snap? The team looks for Seldon’s ex-wife, but a ping on his cell phone reveals that he got to her first. Upstead find an emergency bunker in her basement and blood on the door, but it takes Jay a second to realize they can’t get in. You didn’t notice the keypad on the door, dude?

Halstead calls in Chicago Fire‘s Kelly Severide and Joe Cruz (Taylor Kinney and Joe Minoso) to bust the bunker door open. The ex-Mrs. Seldon is in there, but she’s shooting at literally everything. Her former husband has indeed visited and he locked her in the bunker, so she’s freaked out. In true Voight fashion, he tells his team to “make her talk.” Does he only know one way of interviewing people?