Under the resolute command of Sergeant Hank Voight, the elite intelligence unit continues their relentless fight to take down the city's most dangerous criminals. But just how far is the squad willing to go to achieve justice and protect their own? After taking the fall for Dawson in the Internal Affairs investigation, Ruzek has been arrested on charges of misconduct and obstruction. Plus, Voight is liable to draw suspicion in the murder of corrupt Superintendent Brian Kelton.