Boss

Ruthless Chicago mayor Tom Kane is diagnosed with a neurological disease but must remain focused on his role in an upcoming gubernatorial primary while dealing with relationship woes.

With a new, powerful entry in the race, Kane and his people flex their political muscles to maintain their hold. Meanwhile, a worried Meredith suspects her husband is keeping something from her.

With Zajac's campaign gathering steam, Kane needs to adjust to his health situation; Miller digs deep to come up with some embarrassing dirt on Gov. Cullen.

Kane's political and personal life is spiraling out of control, and his supporters begin to lose confidence in him; Zajac's campaign lands him in uncharted territory; and Miller digs deeper for some elusive answers.

Kane and his camp take on the media when long-buried information is dug up, and with the primary rapidly approaching, the politicos do everything they can to maintain the upper hand.

Kane takes an unannounced break from City Hall as his political image hits an all-time low. The election looms and he'll need to enlist the help of others to weather this storm. Kitty, at an emotional impasse, makes a bold move while Meredith, increasingly suspect of Kane's behavior, seeks opportunities of her own.