14-year-old twins Mia and Mackie Castillo, dedicated dancers since toddlerhood, support each other through competitions and rehearsals, despite their differing styles: Mia loves tap, while Mackie excels at jazz. When their favorite pop star launches an online contest for the most unique dance group to feature in his next music video, the twins form rival teams, enlisting friends and family to gain online votes. Their arch-rival, Avery, a talented and cunning dancer, uses her charm and resources to gain an advantage in the competition.