When his long-running hit series comes to an end, Dean finds himself at a crossroads in life and decides to move back to his small home town thinking he has the experience to take over his family’s law firm, where he butts heads with his brother, Stewart.

Timothy Olyphant is back in Boise and the rivalry between Dean and him continues when Stewart invites Olyphant to spend more time around Sanderson & Yao. After getting into an argument about who is closer to being a real lawyer, the two "Grinders" decide to go head-to-head in a mock trial.

Post-therapy, Dean finds that he has lost the ability to grind. To get it back, he decides to crack the case of the office being ransacked. Meanwhile, in flashback, we see a younger, struggling Dean Sanderson as he must decide whether to embrace a simple life, or pursue his destiny and become the Grinder he was always meant to be.

Stewart is concerned about Dean Sr.'s anger issues complicating their case, so Dean arranges some focus-group testing to see what the masses really think.