Watch Pretty Little Liars Season 4 Episode 2 (S4E2) Online Full Streaming, Watch Pretty Little Liars Season 4 Episode 2: Turn of the Shoe. THE Pretty Little Liars finale aired in the US last night, and luckily for UK fans, the last-ever episode is already available to watch online. TVGuide has every full episode so you can stay-up-to-date and watch your favorite show Pretty Little Liars anytime, anywhere. Season 4, Episode 12 August 27, Hanna joins forces with Mona to help Ashley, despite Caleb's objections. In the fourth-season finale, the girls get answers about Ali and the night she vanished after they come face-to-face with. The girls try to corner "A" at their school's hoedown. Meanwhile, Hanna has a vision the ladies are in danger; the gals locate the doctor who delivered Bet-at-home casino review baby; and Ali returns to work.