The last two episodes dished out by "Pretty Little Liars" were nothing short of exciting. Fans loved the drama and suspense. The promo for "Pretty Little Liars" season 4 episode 18 titled "Hot For Teacher" is out, and it has some juicy details for viewers.

Hanna confronts Spencer's idea

The promo starts with Hanna telling Spencer if she is on crack if she thinks Ezra is "A." It is likely that Hanna knows about Spencer's latest habit. She might be suspicious about her unconventional ways of working.

Spencer is not going to give up

She is one stubborn girl. "Either I prove it, or I'm wrong," says Spencer to Hanna in "Pretty Little Liars" season 4 episode 18 promo.

"You're really serious about this, aren't you?" asks Hanna.

Spencer the stubborn girl

The promo shows Spencer all into it. She is pushing her limits and is not going to give up at all. Shots of her in front a computer, scanning printed pages, looking stressed and exhausted only prove that she will unearth the secret.

Someone at lair

It might be Ezra. In the promo, a man is sitting down at "A's" surveillance computers. The computers in the lair are filled with photographs of Lairs.

Shana visits Emily

In "Pretty Little Liars" season 4 episode 18 promo, Emily is visited by a person who can be Shana.

Closer is danger

"The closer she gets, the more dangerous he becomes."

"We have to call Aria"

Emily insists on calling Aria. Later she says, "Ezra?"

Ezra vs. Spencer

Yes, there is a Spencer-Ezra showdown in "Pretty Little Liars" season 4 episode 18.

"You thought I wouldn't figure out what you've been up to," says Ezra.

Later he says to her that her sloppy performance will have consequences, and he would hate to see her suffer.

"Pretty Little Liars" season 4 episode 18, "Hot For Teacher" airs February 4, 2014 on ABC Family.

Read more about season 4, episode 18, here.