Klaus and Jeff's friendship is threatened by Klaus's girlfriend from another realm.

Facing career-ending accusations and potential jailtime, Perry must turn to Strickland to stay ahead of the prosecution—and Lydell. With the Gallardos' fate in the balance, Della presses Hamilton for answers, while Paul enlists Clara to infiltrate a wealthy white suburb in pursuit of the truth.

Dr. Marcus Andrews introduces some of the team to a patient whose optimism and faith seems to cause Dr. Asher Wolke the most skepticism in light of his own relationship with religion.

Jimmy performs a song with Andy Samberg about being a plant dad then catches up with Chris Evans and Lord Andrew Lloyd Webber before welcoming musical guest Toosii.

Reba McEntire is enlisted as the Mega Mentor to help prepare the artists for the Knockouts. The coaches pair two artists to perform individually against each other, then select a winner to move on to the Playoffs. The pressure is on as each coach will only have one steal in the Knockouts.