The Pretty Little Liars Halloween special revealed a major spoiler. PLL fans will be excited about this moment towards the end. If you haven't watched the Halloween episode, then avoid reading the spoiler below.
Ezra goes berserk on a cabinet door. Emily, Hanna, Spencer and Aria attend a Halloween event in Ravenswood. Ezra calls Aria and tells her to watch out.
A disguised man (Ezra?) gets into a fight with Spencer. Spencer cuts him on the arm with a hedge cutter. She attempts to remove the mask, but the man shoves her to the ground. Spencer hits her head and is knocked out.
The major spoiler is that Allison is alive. However, she is scared of someone (A), Caleb shows up and Allison disappears.
Hanna tells Caleb to protect Miranda Collins, a new character which we will learn more about in Ravenswood. PLL opens up the door to a new spinoff show.
Enjoy watching Pretty Little Liars.