And there’s more drama at the station yet. Given the fallout from the mess that Monica and Blair made, the Assistant DA (and Det. Lopez’s husband) Wesley Evers (Shawn Ashmore), has been assigned temporarily to review evidence related to the case, much to the chagrin of the cops. That includes monitoring police reports and recordings from Blair’s therapy sessions with the officers. And what should he hear when reviewing those files but a fellow detective, Detective Graham (Ivan Hernandez), who says he can’t stop fantasizing about Angela. Wesley later approaches Det. Graham, who calls him a “hall monitor” and razzes that he didn’t think Evers and Lopez would last, because he “always thought she’d end up with a cop.” But then, concedes Evers “must be doing something right.” He’s more charming than contentious, but it’s clear that a seed of doubt has been planted in Evers’ mind.

The second half of the episode really kicks the action into full gear. Nolan and Juarez are on patrol, and she’s catching him up on what’s going on with Aaron (Tru Valentino), who she says is “over in North Hollywood, settling in and happy that no one at the station knows he was a patient of Blair’s.” They roll up on an armed robbery in progress at a pharmacy, where Nolan hesitates to take a shot. The thief immediately opens fire when he sees the cops, runs out and jacks a car, shooting the driver on his way out, leaving Nolan to ruminate on the shot he didn’t take.
Brand new T.O. Chen and her day-one trainee Ridley are the ones who discover the suspect vehicle from he robbery. When they approach, they see the suspect in the front seat, but only after Ridley pulls him out and cuffs him do they realize he OD’d. Ridley immediately gets sick, throwing up in the car and contaminating the crime scene. Later, he explains to Chen that he wasn’t being a “delicate flower,” he was having a trauma response because his high school girlfriend OD’d in front of him. She gives him an understanding speech about how the cops always have to keep the personal separate, because when they lose control, bad things happen.
But Chen isn’t the only one struggling with her rookie. Bradford and Penn are also out on patrol, when a car comes recklessly speeding past them, Penn is thrilled to get “a little action” and jokes about shooting out the tires. When the car crashes, he races into action, violating several points of protocol in process, and after they have the suspect in custody, Bradford really lets him have it, and reminds him that joke about shooting out he tires won’t be so funny if a civil liberty attorney gets to it. When they bring the car back to the station, the department’s radioactivity alarm goes off, slingshotting the team into yet another, even higher stakes mission: there’s a nuke loose in Los Angeles and they have to retrieve it.
Special Agent Garza (Felix Solis) delivers the details: 12 hours ago, a suitcase arrived on a cargo ship from eastern Europe carrying cold war relic from Ukraine that got turned over for demolition. A secure convoy was meant to take it to Oklahoma to be decommissioned but the nuke went missing at the port sometime before dawn. After a bit of misdirection where the team takes down some accomplices at a location that doesn’t have the bomb, we get one more of “The Rookie’s” signature action set-pieces in the streets of LA, as they chase down a trio of criminals in possession of the nuke, followed by a huge shoot out in the middle of the city. Chen takes down one of the three, and Nolan, who spent the day doubting himself, takes the critical shot to bring the other two suspects down.

With the bomb secured, “The Rookie’s” Season 7 premiere settles into a few more character moments to close out. Bradford and Chen show off some of their crackling chemistry with a flirty final scene while they compare notes on their rookies’ rough first days and teeter on the edge of outright making eyes at each other. Laying in bed at home, Evers and Lopez (who’s indulging in a bit of smutty literature called “Seduced by a Sniper”) have a sweet and steamy moment of their own after he asks her if she’s happy. (She is.) Nolan leaves a sweet voicemail for Bailey, who he’s clearly missing at home.
There’s one last reveal for a rookie, too – despite all his bravura, Penn is homeless, living out of his car. He better be good at keeping secrets, because there’s no way that’s going to fly with Bradford.