The ghosts of Jenna's past reveal themselves along with Jenna's insecurity as Halloween hits Palos Hills.

Nick and Hank discover a new kind of strange when they investigate suspects being found dead - for the second time. In Europe, Adalind finds herself in the middle of a feud between Frau Pech and Stefania while working over the details of her pending transaction. Meanwhile, determined to remember every last detail to get things started once more, Juliette insists Monroe share with her Nick’s darkest secret - the world of Grimms and Wesen.

From the Broadway play "Lucky Guy", actor Tom Hanks; a performance by the cast of Broadway musical "Pippin".

The international manhunt for Eli David's killer turns into a federal witch hunt against Gibbs and the team, which questions their unconventional methods and threatens their future at the agency.

A nuclear explosion in the Pacific reignites the search for stolen nuclear weapons and prompts Hetty to shuffle the NCIS: LA partnerships, sending Callen and Kensi overseas and leaving Sam and Deeks teamed up state side.

Cece's wedding day finds Jess and Nick making a decision about their relationship. Meanwhile, Schmidt schemes with a typically overenthusiastic Winston to sabotage the nuptials, although a shocking announcement may be bigger than anything he plans.

It seems Chatsworth may never be the same again when Mimi announces her plans to retire and move to Wilmslow to dedicate her life to charity. Is this the end of the Maguires? And will a reluctant Billy be joining her?

The buyers head to Inglewood, CA. Barry shows up with his motorcycle...and with plans to be triumphant. Herb and Mike find something that is music to their ears. Jarrod and Brandi use old tricks on the new buyers. And Ivy shells out for a unit, but will it lead to big clams?

The buyers venture out to El Monte, CA. The Harris Brothers go into stealth mode. Jarrod and Brandi find their sense of charity. Barry unearths a bag that has him hitting the slopes. And Darrell discovers a big pole...but will it vault him to the top?

The House tries to repeal Obamacare again, an immigration study slams Hispanics, Maxim honors Miley Cyrus, and Dan Brown takes inspiration from Dante.

Actor Ray Liotta; comic DeAnne Smith; musical performance by Pistol Annies.

When Mindy decides to go to Haiti on a volunteer mission with Casey, Danny and his ex-wife, Christina, throw a party for them that they will never forget.

The results are in and it is the end of the road for two of them. Musical Guests: Robin Thicke and Lady Antebellum. Team Adam and Team Blake perform on stage.