'Til Death Do Us Part

"This feels like the end of something."

- Alison

'Til Death Do Us Part is the twentieth episode of Season 7 of Pretty Little Liars and the 160th episode of the show overall. This episode serves as the series finale and it aired on June 27th, 2017.

Synopsis
Seven seasons of secrets come tumbling out in the two hour series finale as the ultimate endgame comes to light.

Spoiler/Notes

 * There is a one year time jump since the events of the last episode.
 * Alex Drake (Spencer's twin) is revealed to be A.D.
 * Wren met Alex in a bar and told her everything about the Hastings family and they fell in love.
 * Alex revealed that she murdered Wren by unknown methods during the time jump so that she could seduce Toby, and take Spencer's place in the group after kidnapping her.
 * She also showed Spencer a diamond necklace made out of his ashes.
 * Charlotte met Alex between EscApe From New York and Whirly Girlie, right after she got off the plane that she booked with a passport Alison had given her. This was also where Charlotte met Archer Dunhill.
 * Alex revealed that she was the one who kissed Toby in The DArkest Knight and later had sex with him in Choose or Lose and this episode.
 * Alex kidnapped Spencer and Ezra and kept them in the house Toby had built.
 * Emily and Alison have twin girls and Wren was revealed as the father of the twins by Alex to one of the girls. However, Emily and Alison are not made aware of the fact onscreen and probably do not know the truth as this is not later brought up. However, Marlene said in an interview that Spencer most likely found out someway from Alex and told Emily and Alison.
 * Aria is told that she cannot not have babies, which makes her skeptical about marrying Ezra. However, Ezra accepts Aria for who she is, and they get married after Ezra and Spencer make their escape from Alex's prison.
 * Hanna announces that she is pregnant to the Liars before Aria leaves for her honeymoon.
 * In one of the final scenes, Mona is holding Mary Drake and Alex in a room, making tea and calling them her "dolls".
 * The final scene was a full circle moment that paralleled Pilot's first scene, but involved Addison and her friends instead of the Liars. Addison goes missing at the end of the episode, paralleling Alison's situation in the Pilot, leaving her fate unknown.

Title and Background

 * The title was revealed by I. Marlene King on Instagram.

Main Cast

 * Troian Bellisario as Spencer Hastings/Alex Drake
 * Ashley Benson as Hanna Rivers
 * Lucy Hale as Aria Fitz
 * Shay Mitchell as Emily Fields
 * Sasha Pieterse as Alison DiLaurentis

Supporting Cast

 * Janel Parrish as Mona Vanderwaal
 * Tyler Blackburn as Caleb Rivers
 * Ian Harding as Ezra Fitz
 * Keegan Allen as Toby Cavanaugh
 * Laura Leighton as Ashley Marin
 * Andrea Parker as Mary Drake
 * Lesley Fera as Veronica Hastings
 * Julian Morris as Wren Kingston
 * Vanessa Ray as Charlotte DiLaurentis
 * Ava Allan as Addison Derringer
 * Torrey DeVitto as Melissa Hastings
 * Tammin Sursok as Jenna Marshall
 * Huw Collins as Archer Dunhill
 * Holly Marie Combs as Ella Montgomery
 * Chad Lowe as Byron Montgomery
 * Brendan Robinson as Lucas Gottesman
 * Nia Peeples as Pam Fields
 * Mary Page Keller as Dianne Fitzgerald
 * Jim Titus as Barry Maple
 * Raquel McPeek as Claire
 * Marlene King as Wedding Photographer
 * Emerson King as Emerson (student in Alison's class)
 * Atticus King as Boy in Mona's doll shop
 * Shari Rosenthal as Boy's mother
 * Sydney Sweeney as Willa
 * TBA as Ava
 * Celesse Rivera as Hadley St. Germain
 * Dalton Cyr as Luke

Trivia

 * The table read for this episode occurred on October 5th, 2016.
 * Filming began on October 5th, 2016  and wrapped on October 26th, 2016.
 * This is the only season finale which was not entirely scripted by Marlene King herself. This episode serves as the final episode of the show to be written by Marlene, Maya Goldsmith and Kyle Bown.
 * As the second half of the seventh season was pushed back to April, this was the only season finale to air in the summer instead of the usual March air dates that the previous six season finales had.
 * The episode's official press release was made public on June 19th, 2017.
 * On September 23rd, Marlene tweeted out several lines from the series finale script.
 * The cast shot the last scene of the script on October 13th, 2016.
 * Tammin Sursok's last day filming for the show was October 14th, 2016.
 * The writers have cameos.
 * The final scene, paralleling the starting scene of the pilot, did not air and wasn't included in Australia's broadcast of the final episode on FOX8. It ended with Mona's final scene.

Featured Music
TBA