Mason Tries To Sit in Nolan's Seat in Class & Ava Is Not Having It on 'The Perfectionists' New Episode

Dylan (Eli Brown) holds Ava (Sofia Carson) back from attacking Mason (Noah Gray-Cabey) again in this clip from tonight’s all new Pretty Little Liars: The Perfectionists.

In “…If One of Them is Dead”, Ava, Dylan and Caitlin (Sydney Park) kick their investigating into high gear when they identify a possible suspect in Nolan’s murder, while Alison (Sasha Pieterse) begins to look into the circumstances surrounding the mysterious suicide of Taylor Hotchkiss (Hayley Erin).

Seeing the Perfectionists juggle sleuthing with their intense academic demands, Alison decides to use her past in Rosewood as a way to mentor them through their current situation.

Pretty Little Liars: The Perfectionists airs TONIGHT, Wednesday, April 3rd @ 8PM ET/PT on Freeform.