"A" has Ali's diary after the Liars lost it on "Pretty Little Liars" season 4 episode 15, "Love ShAck, Baby." The repercussions of this would be drastic on the girls. The promo of "Pretty Little Liars" season 4 episode 16, "Close Encounters" is out and it dishes out some really cool teasers.

1. The Ali-Emily Meet: Is it a trap for the Liars?: The promo starts with Emily informing Spencer, "Ali wants to meet me tonight."

Soon, it is out that it means only Emily and no one else. Spencer might be thinking it is strange that Ali wants to meet Emily alone. It could be a trap.

2. Spencer has a hockey stick: At one point in the promo, the four Liars are together, and Spencer is holding a hockey stick. Is the latter going to use this hockey stick as a weapon?

3. The clues: "The clues are all there," says the voiceover in the promo. Spencer is seen looking through a folder. Aria is holding something close to that of a note. The clue is right there! Will they be able to get close to the fact that Ezra is on to something?

4. Angry Ezra: "This isn't over," yells Ezra and hits a car. However, Jake witnesses this scene.

5. Emily's scene: One shot shows Emily in the church all alone. Is she meeting Ali in the church?

6. Magnifying glass and a clue: All four girls come and look for something with a magnifying glass. Is it a clue or a small message by "A?"

7. "You're too late": It is a message from "A."

8. The meeting: Emily meets Ali, but the meeting is disturbed by someone. Who is this? Ezra?

9. Please save, Emily: The promo of "Pretty Little Liars" concludes with Emily begging for help. "Open up, please!"

Check out the promo below.

Credit: YouTube/littleliarspromo