Pretty Little Liars Mega Buzz: Who Is Dreading Jenna's Return the Most?

Ugh, Jenna Marshall (Tammin Sursok) is back, and Pretty Little Liars' core four is so not excited. She's the last person they want to see, especially after they just buried a body.

Catch up on all this week's Mega Buzz!

Janel Parrish tells TVGuide.com that Mona is also stressed about her former foe's return, and describes their reunion as "very, very tense." The big question on everyone's mind? Why is Jenna back... and how long before her inevitable plot for revenge gets set into motion?

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