Axe discovers a trap set for him by Taylor. Chuck and Wendy navigate marital issues. Wendy rekindles an unlikely friendship. Taylor pursues a new business venture. Connerty formulates a plan to go after Chuck.
Season 4 begins with Axe closing ranks, determined to destroy Taylor. No longer U.S. Attorney, Chuck struggles to regain power. Taylor does what it takes to keep their new company afloat.