Victor and Angel make Lucas the star of this week's group performance, but dance mom Susan's outbursts put a damper on the whole studio. Meanwhile, Hannah and Sammy both have solos and must work to prove themselves as featured dancers.

Angel and Victor create a powerful group number based on the kids' uncertainties. And while the kids face their self-doubts, the tables suddenly turn when dance moms Brigette and Susan side with dance mom Abby and they all turn on the other mother, Debi.

Hannah and Sammy are paired in a duet that brings out issues between the girls and their moms. Kimmy is faced with her biggest challenge yet, portraying a sinister character in her solo performance.