: To avoid tipping off the Chief, the team operates in secret using dummy sign-on numbers. Adam Ruzek goes undercover to reach a middleman named Victor Holmes, but the operation turns fatal when Hailey Upton is forced to shoot and kill Victor after he threatens an underage girl.
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In Season 10, Episode 7, titled " Into the Deep ," the Intelligence Unit intensifies its off-the-books investigation into Sean O'Neal , the son of Police Chief Patrick O'Neal, suspected of leading a human trafficking ring . Key Plot Developments