Officer Kiana Cook (new series regular Toya Turner) helped out Intelligence with an intense case in her Chicago P.D. debut, and now it's the unit's turn to assist her in this Wednesday's hour (NBC, 10/9c).

"It's a fun episode. It's a different one for us," showrunner Gwen Sigan tells TVLine. "She actually brings us the case. Officer Cook comes to the Intelligence unit and comes upstairs and, basically, is looking for help. She caught something while she was a beat cop, and she just has this gut instinct that there's something deeper here, there's something more going on, and no one has really trusted her with that as far as her partner in patrol and her sergeant."

With no one on her side, Cook seeks out Ruzek, whom she knows from their arduous pursuit of Detective Emily Martel's killer. But Ruzek has already gone home when Cook shows at Intelligence's headquarters, "so she ends up asking Torres to help her out," Sigan previews, "and of course, her gut instinct turns out to be right, and we end up in this really twisted, strange, weird case, and she's with us through the whole episode."

After spending the entirety of her first episode with Ruzek, mostly in a patrol car, the dynamic between Cook and Torres is "very different" in comparison.

"When she was with Ruzek, it was so adrenalized, and they were sort of just thrown together and had no chance to get to know each other. It was get to know each other as police officers and run with it through the whole episode," Sigan notes.

In this week's installment, however, "she's coming in, asking for help, which already makes it a little different," Sigan continues, adding that it's also "a quieter, more intimate episode. It definitely has a different feeling to it, and so, there's a little more time to get to know each other, and we see her get to know a lot about Torres."

As Cook and Torres work the case, it becomes obvious that Ruzek isn't the only Intelligence member with whom the patrol officer has a bond.

"[Cook and Torres] definitely have this easy kinship," Sigan shares. "I think it was very clear to the actors, right off the bat, that they had chemistry together. You could feel their friendship, and you could feel the understanding, and it comes across on screen. They definitely have this organic, nice sort of, 'I see you, you see me, and we're in this thing together.'"