“You can go back to Season 3, or you can go back to Season 1 and watch and you might pick up on it. Not a lot of people are gonna be concerned about who A is, it’s about why A is. And it’s so heartbreaking, tragically beautiful and sad. And it explains everything and people are going to be throttled by it because it’s a bigger storyline than you can imagine.”
Aria, Emily and Hanna keep looking for a way to prove Ali's innocence without incriminating Mike. But when the D.A. proposes a plea bargain agreement for Ali that includes naming one of the PLLs as her accomplice, the girls intensify their search - not only to save Ali but to save themselves. Will Ali stick by her story of innocence, or will she give up one of the PLLs to save her own skin?
Meanwhile, not knowing what is happening back in Rosewood, Spencer gets a much needed break from all the drama with a night out on the town in London.
Equipped with their new information about Mona, the Liars decide they need to speak to Alison. But once the truth is out there, Aria quickly learns that Mike's involvement with Mona and this new revelation could have serious repercussions for her family. Determined to keep Mike safe and get Ali out of jail, the Liars intensify their search for information on "A."
Meanwhile, Spencer heads to London for an important college interview, and Alison looks to someone surprising for help with her murder trial.
Determined to get college tuition money without the help of others, Hanna pushes forward with her quest to win the local beauty pageant and hires a pageant coach to ensure her win. Quickly learning that you have to be more than a pretty face to win the grand prize, Hanna turns to Emily for help. Also needing a little help, Aria asks Andrew to help keep tabs on Mike, whose increasingly suspicious behavior suggests a chilling connection to Mona's death. What Aria ultimately discovers makes her blood run cold.
Meanwhile, Spencer decides to help Jonny on a less than legal adventure.
Senior high school students focus on their future college careers and feel the high pressures that come along with it, and Aria, Emily, Hanna and Spencer are no different. With a grade contingent acceptance, Aria needs to buckle down to improve her grades and looks to Andrew for some tutoring help. Also having college acceptance anxiety, Spencer decides to take a break and help Jonny with a new project. Hanna is doing just fine on her college acceptances but finds out that she has been turned down for financial aid and turns to her dad for help.
Meanwhile, Aria and the girls concerns about Mike increase after an incident at the school blood drive.
Pretty Little Liars stjärnar Ashley Benson har fått en roll i filmen Elvis & Nixon, en sann historia som spelas in i Atlanta. Filmen som är regisseras av Liza Johnson, handlar om det okända mötet mellan Elvis Presley och presidenten Richard Nixon den 21 December 1970. Benson spelar en American Airlines flygvärdina som är ett stort fan av Elvis.
I sommar kan vi se Ashley i Adam Sandlers komedi, "Pixels" .