Suffice to say, Hanna Marin (Ashley Benson) isn't getting along with her new stepsister Kate (Natalie Hall).
After the mysterious "A" leaked a nude photo of Kate on Hanna's behalf in the January 30 episode, the two are called into the principal's office in a clip from Monday's all-new episode of Pretty Little Liars.
Joined by their mothers (Laura Leighton and Heather Mazur), Hanna and Kate learn that "Rosewood High has a zero-tolerance policy for bullying, and sending a photo like this is a very serious offense."
Will Hanna be expelled from school? Watch the clip (above) to find out and tune in for an all-new episode of Pretty Little Liars, airing Monday at 8 p.m. EST on ABC Family.