In this episode, Kellie Olisky, Whitney Lane, and I break down the episode in which Aria, Emily, Hanna and Spencer are looking forward to some good old Halloween fun now that the traumatic events with Nate are behind them. But once aboard the Rosewood Ghost Train, the girls are in for much more than just some childish trick or treats. With “A” running amok and unexpected party-goers popping up at every turn, this Halloween event becomes one killer party.