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Actress Lucy Hale arrives at the 2014 People's Choice Awards in Los Angeles, California January 8, 2014. REUTERS/Kevork Djsnsezian

In the new episode of "Pretty Little Liars," Spencer is looking for Mona's laptop. She has teamed up with Caleb in order to search the missing laptop. Read on the spoilers and watch the promo of "Pretty Little Liars" Season 5, Episode 16 - "Over a Barrel" to know more what is going to happen.

Warning: Spoilers Alert! This article contains spoilers for "Pretty Little Liars" 5X16.

Promo - "Pretty Little Liars" Season 5, Episode 16 - "Over a Barrel"

Credit: YouTube/Pretty Little Liars Promos

The promo shows Spencer receiving Mona's messages. Now, Spencer and Caleb are on a mission to find the clues. Meanwhile, the Liars are wondering how Mona is sending the texts. However, they will do something that Toby doesn't like.

Also, while they are looking at the evidences, someone is in the room. Caleb finds out that there is someone else in there. Is the mysterious figure 'A'?

Caleb tells Spencer not to move as the person can harm them. The promo ends with Spencer moving the curtains.

Synopsis - "Pretty Little Liars" Season 5, Episode 16 - "Over a Barrel" Via Alloy Entertainment

"Secrets are hard to keep, especially when you are keeping them from a loved one. Spencer searches for Mona's missing laptop with Caleb's help but where the search leads them could cross the "Toby approved" line. Aria tries to get up the courage to come clean to Ezra about her lie when she gets diverted by a possible goose chase. And Hanna is stuck in the middle having to cover Ashley's secret when Pastor Ted returns with big news.

Meanwhile, Emily has to put up with Talia's annoying suggestions at work, as she struggles to come to terms with the end of her relationship with Paige."

Stay tuned for more "Pretty Little Liars" spoilers. Share your theories and views in the comments' section below.

For questions/comments regarding the article, you may email the writer at t.mazumdar@ibtimes.com.au.