Fans of the 'Pretty Little Liars' are anticipating that the Christmas special episode scheduled to air on Tuesday, Dec. 9, via ABC will be fiery one. They have been wondering whether the Liars and their loved ones will have a trouble-free Christmas for once.

In fact, the official synopsis of 'Pretty Little Liars' Season 5 Christmas special episode entitled "How the 'A' Stole Christmas" offers a glimpse of the intimidating events that are going to be showcased.

The synopsis reads, "Christmas is quickly approaching, and all of Rosewood is full of merriment, except for Aria, Emily, Hanna and Spencer, who aren't feeling much holiday cheer after the loss of Mona and Spencer's murder charge looming over them. But when an opportunity presents itself with the chance to get evidence to clear Spencer's name, the girls and their partners devise a plan to get justice for Mona and finally bring Alison down. If the plan is successful, it could be a very Merry Christmas after all."

The synopsis of the upcoming episode of the teen drama mystery-thriller television series further states, "Alison gets a glimpse at the past, present and future by a ghostly presence."

The spoilers of the upcoming season suggest that the Liars will be attending the grand Christmas ball organized by Alison's family members to discover proof that will help them to absolve Spencer's name from the murder charges levelled against her.

Moreover, the Liars will also endeavor to find means and establish that Ali is actually "A" with a view to unearth a relationship between Ali and Mona's murder.

Meanwhile, viewers will continue to feel the presence of Mona in the upcoming episode of 'Pretty Little Liars', since her ghost will keep on haunting Rosewood. In fact, Mona's ghost will be particularly haunting Alison, who will be seeing mysterious things.

In the upcoming episode of PPL Season 5, viewers will also see the relationship between Ali and Emily become tensed. In fact, their relationship was noticeably growing worse in the last few episodes of the show.

Meanwhile, in an interview with TV Guide, show creator Marlene King said, "Emily feels like she has been betrayed by Alison," adding, "That's where we begin the episode and that's very much a part of her story."