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A Trip Back in Time
Watch Pretty Little Liars Season 4 Episode 19
"Shadow Play"
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On a black and white episode of Pretty Little Liars, Spencer tries to pull all the pieces of the mystery together by going back to the 1940s.

Spencer's Hunch
Watch Pretty Little Liars Season 4 Episode 18
"Hot for Teacher"
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Spencer's friends are concerned as her hunch takes its toll on her on Pretty Little Liars.

Magnifying a Clue
Watch Pretty Little Liars Season 4 Episode 17
"Bite Your Tongue"
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Aria gets upset with Mike on this Pretty Little Liars episode. Elsewhere, Spencer is all about solving the mystery of Ali's diary.

Can She Be Trusted?
Watch Pretty Little Liars Season 4 Episode 16
"Close Encounters"
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When Shana returns, the girls question whether she and her messages from Ali can be trusted on Pretty Little Liars.

Things Become Intense
Watch Pretty Little Liars Season 4 Episode 15
"Love ShAck Baby"
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The girls read through Ali's diary looking for answers on Pretty Little Liars.

PLL Return Pic
Watch Pretty Little Liars Season 4 Episode 14
"Who's in the Box"
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Alison is alive! The Pretty Little Liars are now faced with new questions on the winter premiere episode.

Ezra in Costume
Watch Pretty Little Liars Season 4 Episode 13
"Grave New World"
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It's a Grave New World for the Pretty Little Liars, as Aria, Emily, Hanna and Spencer crash the Ravenswood Founders Day Celebration.

Liars in Ravenswood
Watch Pretty Little Liars Season 4 Episode 12
"Now You See Me, Now You Don't"
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The Liars head to Ravenswood on the summer finale. What trick does A have for them there up her sleeve?

School Dancing on PLL
Watch Pretty Little Liars Season 4 Episode 11
"Bring Down the Hoe"
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Ready for a hoe down? It's school dance time on Pretty Little Liars this week.

The Mirror Has Three Faces Scene
Watch Pretty Little Liars Season 4 Episode 10
"The Mirror Has Three Faces"
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Emily is asked to move into Alison's old room on Pretty Little Liars this week, while Ezra receives bad news about his son.