Credit: Norman Buckley Instagram Photo: Pretty Little Liars Season 5 100th Episode: Hastings Family

Sure, we’re worried for Ezra’s future, and we guess we want to know who “A” is, but when it comes to the Pretty Little Liars storyline we’re most excited to see play out in Season 5, it has to be what the Hastings family has been hiding all these years. Not to mention their now under a state investigation thanks to Mrs. DiLaurentis.

During the Season 4 finale, Melissa came clean to her dad about who really killed the girl in Ali’s grave (hint: it wasn’t Spencer!) — and while we don’t know the answer yet, we’re pretty sure that reveal is going to be at the center of the Hastings family drama in Season 5. Will Peter and Melissa keep this secret to themselves, or will they bring Veronica into the mix? And why did Peter think it was Spencer who killed the girl in Ali’s grave? Obviously, there’s more to this story.

The Pretty Little Liars cast and crew is currently filming the 100th episode of the series — Season 5, Episode 5 (“Miss Me x 100”) — and director Norman Buckley instagrammed a juicy sneak peek pic from set. Norm posted a pic of Troian Bellisario and her TV parents on set looking quite serious. He added: “Hastings, Hastings and Hastings. Hastings family dysfunction. #Myfavoritestoryline #Spinoff.” With so much family drama going on, the Hastings might need a spinoff to get some answers!

When Ali recalled the night she disappeared, she told Spencer that the last time she saw her, she was fast asleep in the barn. But we know that Spencer was up — and coming down from a major high — when the Liars woke up that evening and realized Ali was missing. So what happened after Mrs. DiLaurentis buried Ali alive? And was Melissa there to witness the whole thing? It’s likely that she followed Ian into the woods when he met up with Ali, but what went on from there?

More importantly, will Spencer find out what her family has been hiding all these years? We’ll have to wait and see.

Catch the Pretty Little Liars Season 5 premiere on Tuesday, June 10 at 8 p.m. ET on ABC Family.

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