Get ready for the next episode of "Pretty Little Liars" Tuesday night on ABC Family.

"Alison's trial is coming to a close, and the outcome looks even more bleak when the prosecution calls a surprise witness that not only paints Alison in a bad light but also the PLLs and Mike. Desperate to find any evidence or witness to save their friends, Aria, Emily and Spencer race to find someone or something that can prove Ali's innocence and put an end to this nightmare," according to the official description.

"PLL" executive producer Marlene King decides to reveal that another twin theory could lead the way to unveiling "A's" identity, E! Online reports.

Fans have been waiting for nearly five years to figure out who "A" is, and they just might get the answer in the next episode as the Season 5 finale approaches.

New details about "A's" ulterior motives will be revealed and fans will find out why the season finale is titled "beginning of the end" for the Pretty Little Liars.

King said there has been more than one person to identify "A" but for all the wrong reasons.

"Our fans have been so loyal, and so passionate, and so supportive, and we want them to know that I consider this season to be the beginning of the end of this story," King said.

"It has been an epic journey, but we are on a path now that is going to lead you to the identity of 'A' sooner than later, and we are going to give you bigger and bigger clues as we go along."

Last week's episode was the beginning of Ali's trial and the prosecution proved that he cannot be trusted based on his past behaviors, Hollywood Take reports.

They found out that Jason hooked up with Ashley, causing the prosecution to ask if Jason changed his story about what really happened on Ashley's request.

As the Pretty Little Liars try to figure out who "A" is, they stumble upon a note from Mona that said, "Chandelier's rituals. Sister launched lair. A ruler's list chained."

They have yet to decipher what the note actually means.

Stay tuned for "Pretty Little Liars" Season 5, Episode 24 "I'm a Good Girl, I am" at 8 p.m.

The season finale airs March 24 on ABC Family.