• ‘Pretty Little Liars’ (PLL) Season 7 episode 4 promo, spoilers revealed: What happens on ‘Hit and Run, Run, Run?’—Liars bury their darkest secret

‘Pretty Little Liars’ (PLL) Season 7 episode 4 promo, spoilers revealed: What happens on ‘Hit and Run, Run, Run?’—Liars bury their darkest secret (Photo : Facebook /Pretty Little Liars/ Freeform)

"Pretty Little Liars" (PLL) is set to air another explosive segment this Tuesday. Episode 15 titled "Do Not Disturb" will see the Rosewood girls Spencer (Troian Bellisario), Hanna (Ashley Benson), Aria (Lucy Hale) and Emily (Shay Mitchell) take matters in their own hands to bring out the truth as they grow increasingly suspicious of Sara Harvey (Dre Davis). Here are spoilers for the next instalment of Freeform (previously known as ABC Family) thriller series. Also, find a link to watch the forthcoming segment online via live stream below.

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[Spoiler alert! This article contains spoilers for "Pretty Little Liars" (PLL) Season 6 episode 15 "Do Not Disturb." Read only if you want to know more about it.]

In episode 14 "New Guys, New Lies," Hanna reveals the truth about The Radley security footage to her friends and Jordan. Meanwhile, girls dig deeper to find out if Ezra is responsible for the murder. Later, attention shifts to Byron when the murder weapon is revealed to the girls through a text from the new "A." The mystery continues to get complicated and the episode ended with a huge cliffhanger. An old man, the hotel concierge, is seen getting into a car and removing the face mask. Who this person is, remains a mystery. Could he/she be behind the murder?

Answers to these questions are expected to be revealed gradually during the course of series. In the meantime, the liars get into action to bring an end to the chase. The network has released a synopsis for episode 14 of Season 6 "Pretty Little Liars" (PLL) on its official website. According to the press release, Sara's changed behaviour makes Liars wonder if she is behind the new threats. The girls come together to uncover the truth.

Spencer and Aria team up to collect evidence against Sara before they approach the Rosewood police department.  At the same time, Caleb and Hanna continue to come closer as they wage a war against their new stalker. For their plan of action, the duo uses security footage tapes.

Elsewhere, Aria receives an unanticipated news from her family. And Emily finds Ali (Sasha Pieterse) by her side when she needs a friend.

A promo video for "Pretty Little Liars" (PLL) Season 6 teases the events of episode 15. Dr. Rollins drop by at Emily's place for a brief interaction. He urges Emily to meet Alison, who he insists needs someone at the moment. However, Emily is not very happy to see Dr. Rollins and she dismisses his suggestion.

"She wants to apologize. Her behavior was alienating. She shouldn't be alone right now. Just come by," Rollins tells Emily before she asks him to leave. But before that happens, Rollin notices a brochure from a fertility clinic which leads to awkwardness between the two. Scroll down to watch the promo video.

"Pretty Little Liars" (PLL) Season 6 Episode 15 airs Feb. 9, Tuesday at 8:00 pm on Freeform. Fans can also watch "Do Not Disturb" online via live stream on freeform.go.com. Stay tuned for more spoilers and updates.