Into the Deep

"Who is Jenna so afraid of? CeCe Drake."

- Spencer to Shana

Into the Deep is the ninth episode of Season 4 of Pretty Little Liars. This episode aired on August 6, 2013.

Synopsis
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.

Title and Background
The phrase "into the deep" could refer to getting into a bad situation, or the possibility of going "into the ground". It could also suggest that the Liars are getting into deeper trouble.

Main Cast

 * Troian Bellisario as Spencer Hastings
 * Ashley Benson as Hanna Marin
 * Shay Mitchell as Emily Fields
 * Lucy Hale as Aria Montgomery
 * Janel Parrish as Mona Vanderwaal

Guest Cast

 * Laura Leighton as Ashley Marin
 * Ian Harding as Ezra Fitz
 * Lesley Fera as Veronica Hastings
 * Lindsey Shaw as Paige McCullers
 * Ryan Guzman as Jake
 * Tammin Sursok as Jenna Marshall
 * Aeriel Miranda as Shana
 * Kamar de los Reyes as Dominic Costello
 * Edward Kerr as Ted Wilson
 * Larisa Oleynik as Maggie Cutler

Trivia

 * Some fans think that this episode is a pun to the famous Adele song Rolling In The Deep.
 * The table read was on June 5, 2013.
 * Prep for this episode was on June 6, 2013.
 * Filming began on June 11, 2013 and ended on June 19, 2013.