Its party time for Hanna’s better half: Mona Vanderwaal! The other populair girl of Rosewood High (after Hanna and Alison of course) is having her birthday bash in the woods. It’s a glamping trip: like camping only with glamourous tents housing massage tables, spa treatments and make-overs. Everyone who’s anyone in Rosewood is invited…except for Hanna Marin.

Mona un-invites Hanna after getting ditched during the day. And “A” doesn’t miss a beat. The mysterious texter sends the girls a message to come find her/him at the campsite at Mona’s bday bash. All four girls decide to attend...