Abby makes a shocking announcement that she's sending someone home; Stacey and Tricia go to war over Abby's star dancer, Brady; when tasked with picking their own duet partners, the young dancers fear that the wrong decision could send them home.

Superfans vote for the top 15 greatest group dances in the history of the show; a look back at Abby's award-winning and sometimes-shocking choreography; learning which group dance was voted No. 1.