Alison returns to Rosewood High and attempts to repair the damage she inflicted years earlier.

This special black-and-white episode gives a nod to 1940s-era film noir as Spencer’s numerous sleepless nights with the help of prescription pills start to take a toll on her.

Spencer is determined to finally tell Aria what she has found out about Ezra, but Emily and Hanna are worried about what it could do to their friend.

The Liars are concerned for Aria as they watch her crumble after learning shocking news about Ezra. Not knowing what is true or who to trust, Aria goes looking for…

Hanna is pushed down a dark path after Alison moves in; Aria fails in her duties as maid of honor.

Melissa reveals her knowledge of Alison’s disappearance to Spencer; Emily seeks Ezra’s help.

Aria, Emily, Hanna and Spencer feel trapped and search desperately for a way out of a bad situation.

Still living at a motel, Emily is taken aback when Ali’s mother offers to let her move into Ali’s old room and is shocked when the other Liars insist Emily…

After uncovering evidence that suggests “A” is hiding out closer than realised, the Liars step up their investigation into their most recent suspect. Hanna continues to crumble.

An intriguing riddle from “A” has the Liars hitting the road and heading to Ravenswood, where they are surrounded by some familiar faces.

Armed with the knowledge that Alison is alive, Aria, Emily, Hanna and Spencer now have more questions than ever before.

The girls are reunited when they each begin receiving threatening messages from someone named “A,” suggesting Alison is actually alive – and watching them.

The presence of Mrs DiLaurentis continues to unnerve those around her, especially when she gives Hanna a parrot, whose gift for mimicry provides an insight into Alison’s last days.

Hanna worries that her mother is keeping a dangerous secret and is determined to protect her at all costs, which leads to an uncomfortable meeting with Detective Holbrook.

Holbrook’s partner, Lt Tanner, comes to town, intensifying their investigation into the Liars and their possible connection to Wilden’s death.

Hanna’s attempt to protect her mother gets her into hot water. Hanna has some explaining to do to her parents and the police after she’s found with something she shouldn’t…

Caleb and Toby team up to investigate “A” and what really happened the night of the lodge fire and encounter a source that points to a new possible identity for…

Spencer and Toby are at odds while Emily and Aria struggle with situations that are out of their control.

Secrets abound for Aria, Hanna and Spencer while Emily tries to let go of Paige.

Hanna refuses to let “A” frame her for Mona’s murder; Spencer’s actions put Toby in a bind.

Hanna enters a beauty contest and turns to Emily for help; Aria asks Andrew to keep an eye on Mike.

The prosecution calls a surprise witness in Alison’s trial; the girls hunt for last-minute evidence.

Shocking secrets come to light for Aria, Emily, Hanna and Spencer as the biggest clue to the “A” mystery is revealed.

Melissa reveals her knowledge of Alison’s disappearance to Spencer; Emily seeks Ezra’s help.

Aria, Emily, Hanna and Spencer feel trapped and search desperately for a way out of a bad situation.

The girls are not feeling merry at Christmas because Spencer’s murder charge looms over them. Things improve though after they see an opportunity to gather evidence to clear her name.

The Liars try to prove that Alison was involved in Mona’s death; Aria worries about her future.

Hanna is pushed down a dark path after Alison moves in; Aria fails in her duties as maid of honor.

This special black-and-white episode gives a nod to 1940s-era film noir as Spencer’s numerous sleepless nights with the help of prescription pills start to take a toll on her.

Spencer is determined to finally tell Aria what she has found out about Ezra, but Emily and Hanna are worried about what it could do to their friend.

The Liars are concerned for Aria as they watch her crumble after learning shocking news about Ezra. Not knowing what is true or who to trust, Aria goes looking for…

After uncovering evidence that suggests “A” is hiding out closer than realised, the Liars step up their investigation into their most recent suspect. Hanna continues to crumble.

Jenna’s return brings conflict, Aria agrees to a risky meeting, while a bag of Alison’s possessions seems like old news.

The Rosewood PD turn up the heat on the Liars, causing loved ones to try and close ranks. Aria’s recent collaboration with A.D. comes to the attention of a surprising…

An intriguing riddle from “A” has the Liars hitting the road and heading to Ravenswood, where they are surrounded by some familiar faces.

A creepy ‘hospital’ visited by Alison holds a sinister surprise, while Caleb goes along with a sting unwillingly.

Emily, Spencer and Hanna try to adjust to the new normal; Kenneth searches for Jessica.

All is revealed as the ultimate endgame comes to light.

An uncomfortable close encounter with their nemesis awaits at least one of the tormented quartet, and a death is promised.

Armed with the knowledge that Alison is alive, Aria, Emily, Hanna and Spencer now have more questions than ever before.