Paige throws Emily a surprise birthday party with even more surprising guests � Jenna and Shana. But it�s �A�s� actions at the party that lead to the biggest shock of all. Mona�s selfless act provides Hanna and her mother with their first bit of good news, but sends Mona down a familiar path. And Ezra gets some distressing news from Maggie regarding her and Malcolm. Meanwhile, Aria and Jake continue trying to define their confusing relationship. And Emily meets with a world class coach in a last ditch effort to salvage her swimming career.