Now that Spencer is on to Ezra, Pretty Little Liars Season 4, Episode 18 (“Hot for Teacher”) promises to be a great episode. So, where will the show go from here? We've gathered up the biggest spoilers about the episode right here to help you bide the time until Tuesday.

Read spoilers at your own risk! For more on Wetpaint Entertainment's philosophy on spoilers, click here.

Spencer wants to prove her theory first. In the past, Spencer has been quick to tell the Liars her every suspicion, no matter how far-fetched, but according to the official synopsis of the episode, in this case "she is now more determined than ever to prove her theory before bringing it to the other girls’ attention — especially since it could have a devastating effect on one of the Liars." That other Liar being Aria, obviously.

Hanna catches on. However, Hanna is quite the detective these days, and "with many sleepless nights fueled by prescription medication, Hanna starts to notice Spencer’s odd behavior. Will Detective Hanna be able to figure out Spencer’s secret before Spencer is ready to share?" Based on the promos that show Hanna questioning Spencer, it looks like Han does get Spencer to admit her suspicions.

Hanna's new friend. Speaking of Hanna's newfound investigative skills, it looks like her friendship with Detective Holbrook continues to blossom.

Emily tries to make amends. "Meanwhile, Emily looks to make amends with Alison through Shana," though it looks like that is easier said than done.

Aria's lies. Finally, "all of Aria’s lies start to take a toll on her." Interesting...

Are you looking forward to this episode? Let us know in the comments below!

Catch the next episode of Pretty Little Liars Season 4 on Tuesday, February 4, 2014 at 8 p.m. ET on ABC Family.

Rebecca Martin is an Associate Editor at Wetpaint Entertainment and our resident Game of Thrones, Breaking Bad, and genre TV expert. Follow her on Twitter and Google+!