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Actress Lucy Hale arrives at the 2014 People's Choice Awards in Los Angeles, California January 8, 2014. REUTERS/Kevork Djsnsezian

"Pretty Little Liars" Season 5, Episode 5 titled "Miss Me x 100" is the 100th episode of the show and fans are excited about it. The promo for the episode is out and it looks like it is going to be a special instalment.

Airdate Info - "Pretty Little Liars" Season 5, Episode 5, "Miss Me x 100" airs Tuesday, July 8, 2014 on ABC Family.

Warning: Spoiler Alert!

This article contains spoilers for "Pretty Little Liars" Season 5, Episode 5. Read if want to know more about the instalment.

The promo for "Pretty Little Liars" Season 5, Episode 5 claims that the threat is going to be 100 times greater and the surprises 100 times more shocking. Indeed, the writers gave their all to make this episode stand out.

Alison DiLaurentis is going back to school. She wants to change what happened in the past. Alison is looking to make amends, however it has to be seen if she will be really trying to correct her past actions by doings things right in the present.

Mona and her team are not going to make it easy for Alison.

Credit: YouTube/ABC Family

The promo for the upcoming "Pretty Little Liars" episode showcases Mona slapping Alison. The promo ends before fans could see how hard Alison hits Mona. This is going to be quite interesting - Mona vs. Alison.

Synopsis for "Pretty Little Liars" Season 5, Episode 5 - "Miss Me x 100"

"The day has finally arrived - Alison's first day back at Rosewood High, and neither the PLLs nor Alison are really ready for it. Determined to put on a brave 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."

Showrunner Marlene King took to Twitter and shared what fans can expect on "Pretty Little Liars" Season 5, Episode 5. Check out the tweets below.

Aria: Does that hurt? Ezra: I can handle it. #PLL100 @ezriastorm

— I. Marlene King (@imarleneking) June 30, 2014

She is face-face with Caleb. The moment they lay eyes on each other, the world stops spinning. HANNA: Caleb? #PLL100 — I. Marlene King (@imarleneking) June 30, 2014

Emily: You said you missed me the most. Alison: You were the hardest one to leave. #PLL100

— I. Marlene King (@imarleneking) June 30, 2014