Tensions between Abby Lee Miller and her Dance team have never been higher. So far in season 7 of Dance Moms, the Junior Elite moms have tried to put their serious issues with Abby aside as they prove to her why their daughters should avoid being cut from the team.

However, just when it seems as though things couldn't get worse for the ALDC, a shocking rival from Abby's past returns to seek her revenge. How will Abby and the team handle this? Let's find out in this episode, "Abby's Worst Nightmare."