“Pretty Little Liars” may have taken a break last week, but the storyline will certainly heat up again on Tuesday when episode 6 airs on ABC Family. The girls are home after their traumatizing experience in the dollhouse, however things are not returning to normal. With a new “A” suspect and their tormentor still lurking, it’s hard to say whether or not the Liars can put the past behind them.

As we previously reported, episode 6, titled “No Stone Unturned,” will find the Liars doing some digging to find “concrete proof” that Lesli (Elizabeth McLaughlin) is “A.” “Pretty Little Liars” fans will remember that Hanna (Ashley Benson) and Spencer (Troian Bellisario) discovered Mona (Janel Parrish) holding onto Lesli’s file when they broke into Radley. After reading it they discovered that Mona and Lesli had met inside Radley … and that Lesli had been admitted during the same time as Charles DiLaurentis and Bethany Young.

With “all signs” pointing to Lesli, the Liars want to bring the police as much proof as they can. However, the threats from “A” will “escalate” as they dive deeper into the investigation.

Viewers can watch the drama unfold on Tuesday, but ABC Family released two sneak peek videos to tease what’s next:

Sneak Peek #1

Someone is tense! Kenneth DiLaurentis is none too pleased to find a “Happy Birthday” card under the windshield wiper of his car. However, he doesn’t reveal what the card says … or who it is from.

Sneak Peek #2

There have been many “A” suspects over the past few seasons, but Spencer (Troian Bellisario)  is positive that they finally found their tormentor. Unfortunately, Emily is not as certain.

“They were sharing a straight jacket!” Spencer says of Lesli and Mona’s friendship.

Sneak Peek #3

Hanna recently asked Caleb (Tyler Blackburn) for space after he became too much of a leech. Fans know that he’s just trying to be protective of Hanna, however that’s the last thing the teen wants – especially with “A” threatening their loved ones. Unfortunately, Caleb doesn’t look like he’s willing to cool it with Hanna. The latest sneak peek features him showing up at her house … and she doesn’t look too pleased that he’s there.

Sneak Peek #4

In the fourth sneak peek video, Sara (Dre Davis) is working closely with Caleb in order to get emancipated from her mom. However, the focus turns to Alison DiLaurentis (Sasha Pieterse) when Sara asks him about the teen.

“When you’re forced to answer to someone else’s name and wear their clothes you become curious about her,” she tells Caleb.

Sneak Peek #5

Sara’s nervous about her first day of work with Caleb in the fifth sneak peek video from episode 6. But as Emily puts it, Sara’s new office is the same place where Caleb plays video games in his office.

Season 6 of “Pretty Little Liars” will continue with episode 6 on Tuesday, July 14 at 8 p.m. EDT.