Glee-Cap: All or Nothing

Brittany is brought to MIT to prove if she's MIT material and the heads at MIT are shocked by how despite her basic comprehension, Brittany has come up with a mathematical theory beyond all comprehension and may well be the smartest person since Albert Einstein. The men of MIT offer Brittany a big chance, but what is it?

Ryder continues to struggle with who "Katie" is as the New Directions gear up for Regionals and send thoughts to one of their former members, Rachel, as she embarks on the audition of her life. At her audition, Rachel sings "To Love You More" by Celine Dion.

Blaine asks Sam for help in his plan to propose, but Sam isn't keen on it and tries to sway Blaine, but Blaine isn't having it and inquires Sam to be his best man. Sugar and Joe return from lord knows where just as Will begins to finalizing things for Regionals, but Hurricane Brittany blows into the choir room with diva demands and text break ups for Sam before storming out by explaining she's living the "All or Nothing" lesson Mr. Schue has been preaching.

Brittany quits the Cheerios and acts straight up crazy with Roz, while the straight up crazy continues as Ryder demands to find out who has been the one cat fishing him, and is hurt when Marley and Jake reveal it's them. Blaine looks for the perfect ring to propose to Kurt with, and meets a lovely lesbian jewelry sales lady (Patty Duke) who gives Blaine advice and wants to help in his move to propose. Brittany forces Sue and Will to be on Fondue for Two, and reveals that Michael Bolton is the father of Sue's child, which is one hundred percent true. That's some hot dish, indeed! Sam turns to Santana to help with Brittany's erratic behavior, which after Sam basically begs, Santana seems to cave to help.

Blaine and Kurt dine with the Jan and her wonderful girlfriend, Liz, (Meredith Baxter) at Breadstixs discussing all sorts of things including their past. Before Blaine can work into the proposal mode, Jan steals the thunder and proposes to Liz, who graciously accepts. When Ryder confronts Marley about being "Katie", Unique steps into the limelight and explains that she is the one who had been cat fishing him, and begs Ryder to understand so they can still be connected, but Ryder tells Unique there is no connection and stops talking to her. Santana appears on Fondue for Two, but stops the episode to get the hot dish on what's up with Brittany, who explains that what she's about to say will change everything.

Regionals kick off and The Hoosierdaddies take the competition by storm with performances of "Clarity" by Zedd and "Little Wings" by Little Mix - all led by Frida Romero (Jessica Sanchez). Ryder arrives to competition and says he will compete, but after this, he is finished with glee club for good.

Brittany reveals that she has been accepted to MIT early and explains her meltdown was because she's taking their offer and will leave immediately. In her last show circle with New Directions, Brittany explains that glee club helped her believe she wasn't stupid, and that without it, she wasn't sure she could be who she is without them. Parting is such sweet sorry as Brittany says goodbye, and the New Directions head into the Regionals spotlight.

The boys of New Directions open with "Hall of Fame" by The Script before moving on to the girls leading "I Love It" by Icona Pop. It wouldn't be a New Directions regionals without an original song, thus the Marley penned "All or Nothing" provides for that and a duet with Blaine. From the audience, Kurt and Santana watch (and cry) watching their former glee club perform - not to mention their ex, but not at all forgotten, loves.

Regionals comes to a close as the New Directions take Regionals leading them to Nationals in LA. Amongst all the joy of a Regionals victory is the bittersweet feeling for Brittany and a surprise wedding for Emma and Will. In place of vows, Will and Emma recount their true love journey and they're finally married.

As the joyful room rejoices, Blaine holds a little box behind his back. Could this mean a certain couple headed down the aisle next?

And with that, school is out for summer, Gleeks! It's been quite a year and be sure to K.I.T. (Keep in touch, duh) and have a great summer, Gleeks! I will see you all here when Glee returns in the fall.

Glee out, yo!