Film clips trace the origins of the longstanding rivalry between dancers Maddie and Chloe, who have battled for first place since the show's first season.
Cast:
Abby Miller
Gianna Martello
Melissa Ziegler
Maddie Ziegler
Mackenzie Ziegler
Holly Frazier
Nia Frazier
Kelly Hyland
Brooke Hyland
Paige Hyland
Christi Lukasiak
Chloe Lukasiak
Jill Vertes
Kendall Vertes
Leslie Ackerman
Payton Ackerman
Jeff Collins