Abby's Ultimate Dance Competition

"Las Vegas" is this week's theme and the remaining dancers are tested with styles they've never encountered before. One mom finally snaps and takes on Abby after she gives one too many criticisms about her daughter.

Abby decides to mix things up with the theme for the week being "Unconventional." Anything can, and will happen, starting with the remaining dancers battling Abby in a martial arts challenge.

Judge Rachelle Rak, a veteran of "The Great White Way," leads the challenge for the "Broadway" themed week and blows the kids and moms away with her sassy moves.

Reward for the challenge this week is a private lesson with Abby Lee Miller herself. The pressure of the competition has the moms harping on their children and one mom even sells out her own kid to the judges for not working hard enough.

It's "Wild West" week and the dancers face off in Abby's O.K. Corral. Animosity toward one dancer is building and her mom goes all-out to defend her. Another dancer finally gets the solo her mother has demanded, but will it be her downfall?

With this week's theme of "Nightmares," the dancers tackle all kinds of things that go bump in the night... while their moms have trouble keeping their inner monsters in check.

It's "Diva" week and our dancers and their moms are happy to oblige. In a fierce dance version of kickball where the kids get to choose their dance styles one-by-one, leaving one unlucky dancer with the style no one else wanted.

All of the dances this week are inspired by "Alice in Wonderland." With the numbers dwindling, the competition heats up more than ever and when one mom sabotages everyone, her daughter pays the price.

It's finally time to choose this year's Ultimate Dancer. The finalists are so close they can taste it and they'll do anything to win the $100,000 and a scholarship to the Joffrey Ballet School in New York.