Here we meet the three major players of the series: Lt. Mike Torrello, head of Chicago's Major Crime Unit(MCU); Ray Luca, a young hood about to make his mark on the underworld; and David Abrams, an idealistic public defender trying to bury his Mob-connected roots. As the story unfolds Torrello is working with to bring down members of Chicago's underworld while Luca is taken under the wing of Manny Weisbord; one of Chicago's most powerful crime figures. As events proceed Torrello and Luca each become aware of the other's existence. Torello realizes that there is a new player that he must bring down.

Here we meet the three major players of the series: Lt. Mike Torrello, head of Chicago's Major Crime Unit(MCU); Ray Luca, a young hood about to make his mark on the underworld; and David Abrams, an idealistic public defender trying to bury his Mob-connected roots. As the story unfolds Torrello is working with Abrams to bring down members of Chicago's underworld while Luca is taken under the wing of Manny Weisbord; one of Chicago's most powerful crime figures. As events proceed Torrello and Luca each become aware of the other's existence. Torello realizes that there is a new player that he must bring down.

Torello confronts his new friend, now laundering money for the Mob. Federal investigators indict Luca and Bartoli.

Devastated by Kehoe's death, Torello stonewalls Breitel's federal investigation. Abrams joins the MCU on the street.

Indelli and Krychek must deal with a tense hostage situation. Torello travels to Indiana to make his move on Frank Holman.

Holman ideintifies Torello as a dirty cop to Breitel. After an attempt on his life, Luca takes refuge in Florida.

Torello is subpoenaed to testify for Luca. An enraged Abrams jumps to Torello's defense. Luca orders Torello and Abrams killed.