2 Broke Girls (CBS)
When to Watch: Monday, May 5 at 8 p.m.
What to Expect: You know how Max always makes jokes out of the fact that she never finished high school? Well it turns out, this is one mistake that she's ready to correct. In the season three finale of the CBS comedy, Max will return to her old H.S. stomping grounds to face the history teacher that prevented her from getting her diploma all those years ago.
Arrow (The CW)
When to Watch: Wednesday, May 14 at 8 p.m.
What to Expect: EP Marc Guggenheim dishes, "If everything goes according to plan, that's a caveat, you'll see some familiar faces in the finale. Maybe ones that you're not expecting."
The Big Bang Theory (CBS)
When to Watch: Thursday, May 15 at 8 p.m.
What to Expect: In the season finale of our beloved geeky comedy, Sheldon will be having a very mystical interaction with a never-before-seen character. We all know that Dr. Cooper is a man that firmly believes that science has an answer for everything, so how do you think he'll react when he comes face-to-face with a psychic? Yup, we think he'll freak out too...
The Blacklist (NBC)
When to Watch: Monday, May 12 at 10 p.m.
What to Expect: It might be easier to list what not to expect from NBC's freshman hit. A major death will go down in the penultimate episode that will rock our team, while we'll finally learn more about Tom's mysterious employer. Yes, Berlin is a person! But is Liz's hubby really a baddie?
"I still think there's a great deal of ambiguity to Tom because the question is does he love her?" star Ryan Eggold previews. "That's a question I don't think we've tackled yet that we start get into in the final episodes of season."
Bones (Fox)
When to Watch: Monday, May 12 at 8 p.m.
What to Expect: David Boreanaz steps behind the camera to direct the episode. In it, the team investigates the death of a man who had offered Booth information on a possible government cover-up of a previous case. The team digs deeper, but Booth quickly finds himself in way over his head. Will this be his last days with the FBI?
Castle (ABC)
When to Watch: Monday, May 12 at 10 p.m.
What to Expect: What do a waiter at a strip club, Castle's lawyer and a pastor all have in common? They all appear in Castle's finale, titled "For Better or Worse." Hm…hasn't a certain couple been prepping for a wedding?
Chicago Fire (NBC)
When to Watch: Tuesday, May 13 at 10 p.m.
What to Expect: Sophia Bush will once again crossover from Chicago PD so that Lindsay can spend a little time with Severide (Yes!), while another member of the squad will be celebrating his [spoiler] before duty (and danger) calls. Oh, and someone will receive bad news from their doctor by hour's end.
Community (NBC)
When to Watch: Thursday, April 17 at 8 p.m.
What to Expect: The Study Group learns the history of Greendale's first dean (Chris Elliott) a wealthy genius who disappeared in the 1970s. Meanwhile, Subway returns to Greendale with plans to turn it into Subway University. Plus, Jeff and Britta make a grown-up decision!
Criminal Minds (CBS)
When to Watch: Wednesday, May 7 and Wednesday, May 14 at 9 p.m.
What to Expect: It's a two-parter, baby! The BAU is called to Texas to consult on murders of prostitutes, things aren't exactly as they seem when evidence points to religious overtones and something far more sinister. Look for life-threatening dangers and secrets from the past. Esai Morales returns as BAU Section Chief Mateo Cruz , while Michael Trucco and Brett Cullen also guest star.
CSI (CBS)
When to Watch: Wednesday, May 7 at 10 p.m.
What to Expect: The team investigates a crime that has ties to a mob-led heist from 25 years ago. Brass is confronted with a major decision and Treat Williams guest stars as criminalist Sam Bishop.
The Following (Fox)
When to Watch: Monday, April 28 at 9 p.m.
What to Expect: Ryan Hardy and Joe Carroll, the new dynamic duo!? The sworn enemies come together to stop Mark and Luke from doing something seriously unforgivable.
Glee (Fox)
When to Watch: Tuesday, May 13 at 9 p.m. on Fox
What to Expect: Get psyched, Glee fans because Brittany is coming back! And although we're ending this season a little earlier than usual (only 20 eps instead of the typical 22) creator Ryan Murphy promises that this finale will definitely make up for our missed episodes. "Things are sort of building to a head in episode twenty, a sort of big, natural… I would say explosion is too harsh of a word, but something big happens and then the final season is the aftermath of that.
The Good Wife (CBS)
When to Watch: Sunday, May 18 at 9 p.m.
What to Expect: An old case comes back to bite Alicia—and Lockhart/Gardner—in the behind. Plus, Michael J. Fox! He's back and trying to get a larger piece of the pie. A deposition error reveals a threat Alicia and Cary never saw coming. Meanwhile, Zach's high school graduation is put in the hands of Veronica (Stockard Channing) and Jackie (Mary Beth Peil). It's been a big year for The Good Wife with lots of changes including death and more than one breakup. The very appropriate finale title: "A Weird Year."
Grey's Anatomy (ABC)
When to Watch: Thursday, May 15 at 8 p.m.
What to Expect: After 10 years, Sandra Oh is leaving Grey's, and the role of Cristina Yang, behind, but she will leave her mark. "We're going to give her the exit she deserves," boss Shonda Rhimes promises. "And when Sandra walks out of my door, Grey's Anatomy will be once again be forever changed." As for Owen and Cristina? Kevin McKidd previews that Owen is "in for a world of pain." Yikes!
Grimm (NBC)
When to Watch: Friday, May 16 at 9 p.m.
What to Expect: A lot of cliffhangers…some that will be live-changing for many of the NBC drama's characters. But leading up to the cliffhangers, viewers will see Monroe and Rosalee's wedding attract a guest list full of Wesen in the finale, with Nick worrying that they will be able to see he's a Grimm. The solution? Cool shades, obviously!
Hawaii Five-0 (CBS)
When to Watch: Friday, May 9 at 9 p.m.
What to Expect: Two surprising returns! In the season four finale, Wo Fat is on the loose after escaping prison (Ruho-roh!), while Nick Jonas reprises the role of Ian Wright.
Law & Order: SVU (NBC)
When to Watch: Wednesday, May 21 at 9 p.m.
What to Expect: Drama, of course. But it won't be nearly as drastic as the season 14 finale that saw Benson held at gunpoint. "No, it would be wrong to kidnap her at the end of every season. I think the audience would feel schmuck–baited," executive producer Warren Leight tells us.
"It's at least a season finale and it's the annual battle between the network and Dick, the rites of spring battle is going on," Leight says. "I have to sometimes be prepared for it to be a series finale as well. There's going to be a little more disruption in Amaro's life coming up soon and it's going to play out over the course of [episodes] 22, 23 and 24."
The Mentalist (CBS)
When to Watch: Sunday, May 18 at 10 p.m.
What to Expect: Will Lisbon actually leave for Washington, D.C. with Agent Pike? Her plans are derailed in "Blue Bird Inn," when a new lead in a cold case keeps her around for a little while longer, giving Jane time to finally come to terns with his feelings for her and decide just what to do about said feelings. Feel free to squeal at any time!
The Middle (ABC)
When to Watch: Wednesday, May 21 at 8 p.m.
What to Expect: The Hecks are going to Disney World! It's a family vacation that only the Hecks can deliver.
The Mindy Project (Fox)
When to Watch: Tuesday, May 6 at 9:30 p.m.
What to Expect: Two trips to the top of the Empire State Building for our heroine Mindy Lahiri, and yes, one of them is to meet Danny. But fans can also expect to see a whole bunch of costume changes for Mindy (19 within the 22 minute episode!). Ike Barinholtz explains, "The finale, we have lots of different scenes and it has to be this perfect ideal romantic world that's going to be juxtaposed with the real world, so we needed lots of different costumes and looks for her."
Modern Family (ABC)
When to Watch: Wednesday, May 21 at 9 p.m.
What to Expect: Here comes the groom—well, we should say grooms! Wedding bells are in the air for Modern Family's special two-part finale. So what can fans expect from the Emmy award-winning smash? Mitch and Cam are finally tying the knot and their wedding will be nothing short of spectacular.
NCIS (CBS)
When to Watch: Tuesday, May 13 at 8 p.m.
What to Expect: The NCIS team investigates whether a fire on a U.S. Navy ship, which also served as a detention site for terrorists who had been indicted, was accidental or an intentional diversion for prisoner escape.
Meanwhile, Gibbs travels home following news about his father's passing. The final episode of the season will be a tribute to both the character and the actor, Ralph Waite, who passed away earlier this year.
NCIS: LA (CBS)
When to Watch: Tuesday, May 13 at 9 p.m.
What to Expect: The NCIS LA team and the DEA discover a plot to bring a whole mess of cocaine to the US with a submarine, and it's up to Callen and Sam to find the sub. Plus, Washington comes a-calling for Hetty as a repercussion from the Afghanistan mission.