“Pretty Little Liars” fans have something to celebrate. On Tuesday, July 8, the ABC Family series will be hitting its 100th episode, and viewers definitely won’t want to miss it.

Last time we left off in episode 4, the four Liars were struggling with Alison’s return and latest lie about the kidnapping. Uncertain on how to handle their old friend, a majority of them decided to keep their distance. Hanna on the other hand dutifully ran back to Alison’s aid. However by the end of the episode, viewers discovered that Alison’s drama had definitely taken a toll on Hanna. Besides a drastic new hairdo, Hanna resorted to her old ways of shoplifting.

Meanwhile, Aria turned to Ezra for help in dealing with her grief and guilt over killing Shana; and Spencer discovered that her father might have played a role in the death of Mrs. DiLaurentis. But the real shocker came at the end of the episode when Mona threatened Paige over her allegiance to the anti-Alison army. Despite being broken up, Paige warned Emily that Alison’s return to Rosewood High School wouldn’t be easy… and might even take a dangerous turn. Emily tried to tell Alison that she’d be better off starting over at a new school, but for Alison that’s not an option.

Episode 5, “Miss Me x 100,” will find Alison returning to Rosewood High for her first day back – and Mona’s ready to attack the former Queen B with her newly formed army. Never one to back down, Alison’s determined to put on a “brave face.” But will she resort to her old ways of bullying her classmates? Or will her time away really have changed her for the better?

The synopsis for the 100th episode reveals that she’s ready to “help heal the damage she did years ago.” However a promo video for the milestone special tells a slightly different story.

“I made you ‘Loser Mona’ once and you know I can do it again,” Alison angrily fires at Mona in the preview for “Miss Me x 100.”

“Pretty Little Liars” fans can also look forward to the return of Caleb, Travis and Jenna when the 100th episode airs on Tuesday, July 8 at 8 p.m. EDT.

What do you think will happen in episode 5, “Miss Me x 100”? Tweet your thoughts to @AmandaTVScoop

Pretty Little Liars Lucas in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Should Alison be worried about Mona's actions? Photo: ABC Family

Pretty Little Liars Alison and Mona in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Hanna and Lucas reunite in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Does Travis know about Caleb's return to Rosewood? Photo: ABC Family

Pretty Little Liars Travis and Hanna seem to be pretty cozy in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Lucas has a new look in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Hanna and Caleb in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Ezra seems to be doing okay after getting shot in the gut by Shana. Photo: ABC Family

Pretty Little Liars Toby and Spencer in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Emily and Alison are holding hands! Photo: ABC Family

Pretty Little Liars Alison, Emily, Spencer, Toby, Ezra and Aria in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Is the group watching a video threat from "A"? Photo: ABC Family

Pretty Little Liars Ezra's out of the hospital! And hanging out with high school students? The group must be watching something pretty important ... Photo: ABC Family

Pretty Little Liars Hanna and Caleb in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Hanna and Caleb in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Looks like Hanna's not ready for Caleb to go ... Photo: ABC Family

Pretty Little Liars Can the former lovers be friends? Photo: ABC Family

Pretty Little Liars The first reunion? Hanna and Caleb will finally come face-to-face in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Welcome home, Caleb! Photo: ABC Family

Pretty Little Liars Jenna returns to the picture in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars Mona's anti-Alison army is growing in numbers. Photo: ABC Family

Pretty Little Liars Aria, Emily, Hanna and Emily in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars How will Aria, Emily, Hanna and Spencer deal with Alison back in school? Photo: ABC Family

Pretty Little Liars A joyous reunion for the five Liars? Photo: ABC Family

Pretty Little Liars Paige seems to be getting friendly with new girl Sydney (Chloe Bridges) in episode 100 of "Pretty Little Liars." Photo: ABC Family

Pretty Little Liars What do Lucas and Mona have up their sleeves? Photo: ABC Family