The sneak peek for "Pretty Little Liars" season 4, episode 21, "She's Come Undone" is about the after effects of Ezra's betrayal. She is angry with him and wants to talk him like right now.
The 50-second long video showcases an angry Aria. She walks by Spencer and Emily at school. She wants to see someone. Spencer and Emily think that talking to Ezra in school is not cool at all.
"What's going on? I thought you were taking the day off?" Emily to Aria.
Apparently, Aria wants to talk to Ezra face-to-face. She is not in a great mood, and Spencer tries to grab her arm in order to stop her. Spence tell her that they know she wants the answer.
Emily says that she deserves to know them. Hanna joins them in the hallway. Spencer continues and says that confronting Ezra in the school not a great idea. It is cool to see Emily and Spencer trying to convince Aria. However, she is not even listening to them and continues to walk. She enters into Ezra's classroom. The class is on, but Ezra has been replaced. There is a substitute who faces Aria's wrath.
"Where is Ezra?" asks Aria. The substitute replies if she is looking for Mr. Fitz. The new teacher informs Aria that he is out due to a family emergency and if she can help her.
During this time, Aria gives that yeah-right look to her. "Oh, a family emergency? Right," says Aria.
Meanwhile, in "Pretty Little Liars" season 4, episode 21, Spencer is in trouble too. She might have to go to the rehab because of her pill-consuming habit. Her parents are ready to send off their daughter to a rehab, and she thinks it is an absurd idea. Spencer pleads that she must be given a chance to beat the addiction by herself.
"Pretty Little Liars" season 4, episode 21 airs Tuesday, Feb. 25, 2014.