Mega Buzz: Relationship Woes on Castle and New Girl and an NCIS Witch Hunt

Every week, editors Adam Bryant and Natalie Abrams satisfy your need for TV scoop. Please send all questions to mega_scoop@tvguide.com or tweet them to @adam_bryant or @NatalieAbrams.

What can we expect for Castle and Beckett's relationship as we head to the end of Castle's season? — Dana
ADAM: The bumps that we've hinted at before will be exacerbated by two men who come into Beckett's life. First, Beckett will be assigned to protect multimillionaire inventor Erik Vaughn (Ioan Gruffudd) — in his private hotel penthouse. "If Castle aspired to be someone, he'd aspire to be this guy," creator Andrew W. Marlowe says. "Castle's really determined to solve the case and get his girlfriend away from him." During their alone time, Erik will ask Beckett some tough questions about where her relationship with Castle is headed. Unfortunately, as  Beckett wrestles with those questions in the season's penultimate episode, she'll cross paths with a federal investigator (Carlos Bernard) who might offer some different answers. "He opens Beckett's eyes on other possibilities that might be out there for her," Marlowe teases.

Got any Nick and Jess scoop for New Girl? —Charlene
NATALIE: Get ready for more awkward Nick Miller times! When Jess' dad (Rob Reiner) returns, Nick will find himself stuck hanging out with Papa Day and it won't go as planned, natch. "There's a lot at stake because Nick is trying to impress him," executive producer Liz Meriwether tells me. "I think Bob Day likes Nick a lot, until he realizes that Nick might be interested in his daughter, so he's holding him up to a little bit of a higher standard."

I have a bad feeling about what's going to happen to Ziva on NCIS. Can you make me feel any better? — Mandy
ADAM: Not really. Although executive producer Gary Glasberg says Ziva's upcoming trip to Berlin with Tony features a "tremendous personal story," Ziva is ultimately out to avenge her father's murder. "People are going to see a Ziva David that they haven't seen in a long time," Glasberg says. "There is a strength and a resolute determination." But will she go too far? That becomes the very question of the season finale as Colin Hanks' federal investigator leads a witch hunt that takes a closer look at Gibbs and his team — and heads could roll. "There is a crossroads for NCIS," Glasberg says. "Boundaries have been pushed and lines have been crossed. At some point, does that catch up to you?"

Are we going to see some forward movement for Sheldon and Amy in The Big Bang Theoryfinale?
NATALIE: Actually, it'll come in the penultimate episode entitled "The Love Spell Potential," in which the girls play Dungeons and Dragons with the guys. "There is a fully incredible Sheldon-Amy scene at the end that I can't wait to go on television," executive producer Steve Molaro says."Sheldon and Amy go right into the heart of that conversation and it's weird and sweet and touching and amazing and [Jim Parsons and Mayim Bialik] just did a breathtaking job." Can. Not. Wait.

Do you have anyRevenge scoop? — Lisa
ADAM: On the April 28 episode, Nolan will dig for answers about Padma's death and, in the process, viewers will finally learn the identity of the elusive Falcon. And a showdown is a-comin'... sorta. "Two major computer geeks going head-to-head -- you can imagine that one," Gabriel Mann says with a laugh. "How they [battle] is something that will inspire some laughs." But things could also turn serious much faster than you think. "I have to question whether [Nolan's] up on his self-defense kills at this point, but I will say he's going to need them really bad for things coming up soon," Mann says. Personally, I'm just hoping Nolan will get to sport his undercover 'stache again!

Will Rachel and Aaron survive the trek to the Tower onRevolution? —Samuel
NATALIE: It won't be easy, that's for sure. "There are a lot of obstacles," Elizabeth Mitchell teases. "They run into a lot of people, and they have to get things for their journey. There's a tremendous amount of resistance and there's the struggle for survival and they don't do it very well. They're not our two warriors." As for those people, look for Aaron to face his former wife — and she hasn't just been waiting around for him all these years.

Can you give us any hints about where McGarrett and his mother stand in the season finale of Hawaii Five-0? — Heather
ADAM: The pair will actually make quite a team in the season's penultimate episode. But once the finale offers some new answers about what exactly transpired between Doris and Wo Fat in that safe house, you can expect the the mother-son relationship to be as fraught as ever. ""McGarrett is getting to a place that he has to trust the people in his life," executive producer Peter Lenkov says. "[But] with Doris... it's always one step forward, two steps back. The moment he starts to trust her, she does something to break that trust." As such, don't look for Mama McGarrett's story to be completely wrapped up in the finale. "We've only just begun to scratch the surface," Lenkov says.

The Vampire Diaries' prom is finally here! What can you tell us? —Cam
NATALIE: If you thought you'd seen the worst from Elena, you were wrong. By the end of the episode, she'll betray two people extremely close to her, one of them in the worst way imaginable.

I'll take anything you can share about Supernatural. — Trish
ADAM: If you're expecting the return of Felicia Day's Charlie on the April 24 episode to be as much fun as the LARP-ing episode, prepare yourself for something a little different. "We've become very familiar with Charlie's sarcasm, [but] I think [this] really gives us an opportunity to go a bit deeper," executive producer Jeremy Carver says. "Although there will be some geeky fun as Dean tries to teach Charlie how to be a demon hunter, she's also carrying a deep secret that could get her killed. "The boys start to uncover many, many layers of Charlie... and it's ultimately a really rather emotional [episode]. It certainly resonates with the boys."

What's coming up on Elementary? —Penny
NATALIE: The series will be doing an entire episode devoted to one of Sir Arthur Conan Doyle's Sherlock stories, "The Adventure of Charles Augustus Milverton," in which Holmes is enlisted to recover sensitive material from the titular blackmailer, who targets the families of rape victims — but there's a twist. "At the very end of the [original] story, Milverton is killed and Sherlock walks away," executive producer Rob Doherty says. "We didn't think that really fit for our structure, so for us, that's really the beginning of the story. Sherlock is hired to recover something, happens to be there when somebody comes after Milverton and then has to figure out what to do next." And if that's not exciting enough, there's this.

Any hints about the Southlandfinale? — Jacob
ADAM: The full force of the LAPD will be out searching for the meth heads who kidnapped John Cooper and killed his partner — everyone except Cooper himself, who's stuck behind a desk. And yes, given his recent experience, he's an emotional wreck. "As bad as things have been, he still hasn't hit bottom," Michael Cudlitz tells us. "But he will." Elsewhere, look for Ben's duplicitous behavior come to light in a major confrontation with Sammy. "I don't think the partnership can be saved at this point," Ben McKenzie says. "The relationship is not left ambiguous. You know where they stand, for better or worse."
Is Jerry retiring on Parks and Recreationthe answer to your blind item? —Betty
NATALIE: Yes indeed, but fear not: Executive producer Mike Schur promises they're not kicking Jim O'Heir off the show. "In that episode where his pension kicks in, he does intend to fully retire," Schur says. Meanwhile, the finale will give April some life-changing news, so keep an eye out for our must-see finales gallery to get the scoop on what it could be.

Adam's Mega Rave: Can we get a slow clap for Mad Men's Alison Brie? The verbal ass-kicking Trudy gave Pete as she threw him out of the house could only have been better if she had done this.

Natalie's Mini Rant: The Pitch Perfect reunion during the MTV Movie Awards was anything but perfect. Hello, how about giving the rest of the cast a little screen time?! Totally wasted opportunity.

Crave scoop on your favorite TV shows? E-mail Adam and Natalie at mega_scoop@tvguide.com or drop us a line at Twitter.com/TVGuide
(Additional reporting by Sadie Gennis and Robyn Ross)