On trial for murder, Pernell sends KD on an important mission to uncover the identity of a mystery witness against him. Crystal reconnects with family in Stockton. Jocelyn ventures out, Paul and Alicia make a decision about the baby, and Tessie contemplates retirement. As he works to woo Crystal, Pernell discovers he may not be the picture of mental health he'd hoped to present to her.

With his visions returning and Chief Toby watching him like a hawk, a desperate Pernell breaks the terms of his bail to consult a renowned neurologist. Crystal confronts family secrets and PJ's legacy. Bobo chases political glory, but must face an old flame to get there. KD and Tessie find common ground, and Paul, without Alicia around, goes into a tailspin when his reputation falls apart.

When Pernell's bail is revoked, he finds himself tormented by a mysterious new presence in jail. Crystal returns to San Vicente on a mission that lands her in Brooks HQ for an unorthodox job interview. KD tries to dissuade the key witness in Pernell's trial. Facing public unrest, Bobo asks the Harris' for a sacrifice. Jocelyn suffers a setback in her healing process.

Still hiding his medical treatment from Olonari, Pernell attempts to reconnect with his wife. But Crystal is busy using her new position as Anne Wu's replacement to further investigate Bathwater. Paul and Alicia face the fallout of Alicia's accident, reawakening Paul's faith. Tessie enlists KD's help to secure her dream house. KD takes matters with the Caldwell trial into his own hands.

After KD's startling confession, Chief Toby and the police make a move. Crystal and Bobo encourage Pernell to go to the media to clear his name. Against Dr. Olonari's wishes Pernell seeks out a dangerous medication to stop his hallucinations. Crystal teams up with a hacker to find Bathwater as Jocelyn confronts her past in therapy.