Recapping Season 5, Episode 18 of Pretty Little Liars. The Liars make Aria investigate her suddenly shady brother, Magic Mike Montgomery, Hanna unlocks all of her powers and becomes the mythical Black Swan, Emily tries to figure out whether or not Talia is flirting with her (uh, she is, Em), and Spencer is fascinated by the local blue collar boy and the amazing things he can do with junk and electronics.