As the war between Woods (Mykelti Williamson) and Voight (Jason Beghe) intensifies on Chicago P.D., Voight may have just secured the upper hand now that he knows who's been leaking information from his unit and why.

During Wednesday's intense winter premiere, Voight finally learned that Ruzek (Patrick John Flueger) is the mole he'd been searching for and that the Central Intelligence officer only spied on his crew after being strong-armed into it by Woods.

Now that Ruzek's is secret out of the bag and Voight is understanding of his predicament, Fleuger says the experience will bring them even closer together. "Voight's big thing is 'tell me the truth so I can lie for you,'" he explained. "I don't think it's lost on him that Ruzek was in a really bad situation and he might have done something similar."

They'll team up with Olinsky (Elias Koteas) to flip the table on Woods, but according to showrunner Rick Eid, Voight's checkered past may end up costing them everything. "Something from Voight's past comes back to haunt him, and it might give Woods the poker chip he needs to win this thing," Eid teased.

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With Woods using his authority as the face of police reform to mask a personal vendetta against his former partner and Voight refusing to back down, this bitter rivalry isn't going away anytime soon and that spells trouble for the rest of the crew.

"It begins to escalate and Woods begins to exert his leverage over maybe a different member of the team," added Eid. "They're both playing hardball, and it'll come mano a mano to the bitter end."

Chicago P.D. airs Wednesdays at 10/9c on NBC.

Jason Beghe, Mykelti Williamson, Chicago P.D.Jason Beghe, Mykelti Williamson, Chicago P.D.