Aria, Emily, Hanna and Spencer crash the Ravenswood Founders दिन Celebration after finding a clue in “A’s” new lair that Ali may indeed be alive. Dressed in their finest Edwardian wear, the ladies hit the creepy cementery party to find Ali before “A” can. But if Ali is truly alive, could the PLLs be leading “A” straight to their friend without knowing it? With Ezra lurking in the shadows, “A” may be closer than the girls realize.
Meanwhile, Caleb heads to Ravenswood to help the girls and meets kindred soul Miranda (Nicole Gale Anderson) along the way.

This isn't my theory, but I agree with it, so I'm posting it.

Though it might seem a bit all over the place.

So throughout the seasons Melissa Hastings has been shady, not only is she shady, but she tends to disappear for long amounts of time.

The theory here is that Melissa Hastings made up Bethany Young as like a decoy type thing, and that would explain why when Mrs. DiLaurentis took her to the stables, she was using the riding hat that had MH written in it.

The reason that she would want a fake name is because her family is all about reputation, she says she pushed Bethany into the hole, but what if she is just a psycho? Also, Bethany's voice kind of sounds like Melissa Hastings, and the only person we know Mrs. DiLaurentis having an affair with was Melissa's dad.

READY या NOT, THE क्वीन BEE RETURNS TO SCHOOL IN THE 100TH EPISODE OF “PRETTY LITTLE LIARS,” AIRING TUESDAY, JULY 8TH 2014

Its Alison’s first दिन back at Rosewood High and Mona and her army are ready in “Miss Me x 100,” the 100th episode of ABC Family’s hit original series “Pretty Little Liars,” premiering Tuesday, July 8th (8:00 – 9:00 PM ET/PT).

The दिन has finally arrived – Alison’s first दिन back at Rosewood High, and neither the PLLs nor Alison are really ready for it. Determined to put on a ब्रेव face, Alison returns to also help heal the damage she did years ago. But are apologies enough for those who Alison has hurt in the past? Not if Mona and her army have anything to say about it.

Meanwhile, Caleb and an old foe return to Rosewood.

Source:
ABC Family

With Hanna occupied because of her mom's upcoming trial, Aria, Spencer and Emily band together to continue to investigate Wilden for information that could be used at Ashley's trial.

Caleb and Toby team up to investigate -A and what really happened the night of the lodge आग and encounter a स्रोत that points to a new possible identity for Red Coat. Hanna struggles to act like everything is normal and her फ्रेंड्स are unsure about how to help her. Aria worries about Mike's behavior in light of an incident at school and Ezra struggles with how he now fits into her life. Meanwhile, The Liars are determined to find a new suspect in Wilden's murder and their tactics have unintended consequences. And, -A's new plan threatens to send everything crashing down around one of the Liars.

Spencer is the "perfect girl" of the group. She gets in प्यार with her sister´s Melissa boyfriend. But when Melissa saw they were चुंबन she gets angry with Spencer.
Spencer then starts dating a worker at the country club named Alex. But they broke up because of "A´s" falt.
Spencer was the only one of the four that was always competing with Alison.
Spencer also had a crush on Ian, her sister´s boyfriend, who the girls thought killed Ali.
Spencer then falls in प्यार with Toby. The girls thought at first that Toby may be the person who killed Alison.

Here are some unconfirmed spoilers for the 4th episode of season 4 "The Mirror Has Three Faces":

-Wren will "be all over" 4x10, "The Mirror Has Three Faces."

-In 4x10, there will be some scenes that will make us "scream" and some that will make us "gasp."

-There will also be a shirtless Jake scene.

-Hanna & Wren will have a scene at The Brew in this episode.

-There will be Haleb scenes that will "melt our hearts."

And for 4x07 "Crash and Burn, Girl!":

-Nigel, the blond guy we saw walking Jenna into Wilden's funeral, will reappear in "Crash and Burn, Girl!" (4x07) And while Nigel "may have a darker side," we won't see his darker nature on the surface.

"A" Theories
I think that Toby is "A" because someone locked Spencer in that room with a crobar when they were at the fair and i think he is because as soon as she got out he was straight outside
Facts
Alison has a twin
Mona had Alis diary
"A" (Mona) took spencer to the cliff when she wanted to throw her off
Ali is the sencond "A"
Mona used to तारीख, दिनांक Noel
Noel broke up with Mona to be with Jenna
Maya and Ali both died
Ali made up a fake twin so she could spy on the pretty little liars

Hope आप enjoyed the facts and my A theorie, I hoped i helped आप <3

1.“Time To Be Your 21” द्वारा Alexz Johnson: Plays when Hanna and Emily talk about Em’s हटाइए to Texas.
2.“Hiding My Heart” द्वारा Brandi Carlile: Plays when Aria informs Ezra that, up until now, he was the only guy who had never lied to her.
3.“Far Far” द्वारा Yael Naim: Plays when Toby tells Spencer he’ll be there for her no matter what.
4.“Coming To” द्वारा Apex Manor: Plays when Aria जवाब her door and finds Ezra’s ex, Jackie, standing there.
5.“I’m Not Calling आप A Liar” द्वारा Florence and the Machine: Plays when the girls receive a text from A at the end of the finale.

Aria, Emily, Hanna and Spencer are all pushed into difficult situations.

As -A continues to play games, the stakes are raised higher as each girl is forced into difficult positions. Aria starts to seriously contemplate her relationship with Ezra as his new family situation continues to eat away at her. Hanna is thrown into the middle of Caleb's family drama when Jamie's shady past comes back to haunt him.
Emily is determined to prove Spencer wrong in hopes of helping her, but she might not be ready for what she finds. In the end, will the Liars be able to get out of their sticky situations या will -A have them right where he/she wants them?

Meanwhile, Spencer searches for जवाब about Mona’s time in Radley Sanitarium.

Emily is a competitive swimmer. She was dating Ben but when she knew Maya she discovered she was gay. Maya and Emily were dating.
When Emily´s mother knew her daughter was gay she was a little bit disappointed but all in all she helped her.
Maya and Emily had to separate because Emily´s mother finds drug in Maya´s bag so she tells her parents. Maya had leave Rosewood to go to an estrict place.
Paige is another competitive swimmer in Rosewood, she sees Emily as a big enemy to being the captain of the swimming team. But then they start to hang out many times. But Paige cant accept she is gay so Emily calls a girl called Samara, a gay girl, to have a meeting with Paige and Emily.Paige never goes to this meeting but Emily and Samara made friends.