S5, E25: "A" has always had fun playing with Aria, Emily, Hanna and Spencer, but now "they" have the biggest game to date in store for the girls. As shocking secrets come to light and the biggest clue to the "A" mystery is revealed, is this one plAydate the Liars can survive? It's the beginning of all the answers with the biggest "A" reveal ever in the explosive season finale.