“Dance Moms” is airing a super-sized episode Tuesday (Feb. 12), titled “Rotten to the Core.” Is it instructor Abby Lee Miller who is the rotten one? The above preview makes it look like it might be her — or it might be one of the moms she gets in a fight with.

The special 90-minute episode is packed with super-sized ego (“Abby giventh, Abby taketh away”), super-sized fights (did we just see moms throwing water on each other?) and a “super-sized surprised,” according to Lifetime. What do you think it could be?

Is Abby having a health scare? She looks pretty worked up in the preview. Tune in at 9 p.m. ET/PT on Lifetime to find out all the dirty details.