Things are heating up on Pretty Little Liars, and the synopsis for Season 4, Episode 23 (“Unbridled”) has us seriously worried that all of the Liars are on the verge of a breakdown.

According to the synopsis, “It is a rough time for all of the Liars as Spencer is reeling about the memories from her “lost summer,” Aria is still nursing a broken heart, Emily is reeling from Paige’s betrayal and Hanna unsuccessfully attempts to wade back into the dating pool.” Wow. So there’s a lot to unpack here. It sounds like Spencer’s huge secret is about to surface, and we bet her “lost summer” has something to do with the night Ali disappeared.

Meanwhile, Aria and Emily are both dealing with matters of the heart, as Aria is still reeling from Ezra’s lies (but at least she has new eye candy to keep her company) and Emily is dealing with “Paige’s betrayal.” We wonder what’s happening with Paily. We know Paige wants to protect Emily from “A,” but is it possible she does something to hurt Emily in the process?

The synopsis continues: “But as each girl tries to deal with her individual issues, they must focus their attention on their suspicions surrounding Mrs. DiLaurentis. Assuming that Mrs. D knows more about Ali and the night she went missing, girls decide to help out at her charity bridal fashion show to gain access to the DiLaurentis house to search for answers.”

Mrs. DiLaurentis definitely knows more than she’s willing to admit. Her behavior lately has been so sketchy! Is it possible Mrs. D was one of the reasons Ali faked her death in the first place? After all, there has to be a reason both of her children chose destructive paths.

Speaking of Mrs. DiLaurentis’s children, Jason DiLaurentis makes his triumphant return to Rosewood in this episode after some time with his grandma. But it sounds like he returns with “something to hide.”

But Jason isn’t the only familiar face who’s returning in “Unbridled.” Ella Montgomery is finally coming home! However, she, too, is returning home with a secret. We wonder if it has anything to do with those marriage spoilers… did Ella and the Muffin Man get hitched in Austria? We hope so! Someone needs a happy ending on this show.

Catch the next episode of Pretty Little Liars on Tuesday, February 25 at 8 p.m. ET.

Crystal Bell is an editor at Wetpaint Entertainment and our resident fangirl for all things Pretty Little Liars. Follow her on Twitter and Google+!