Popular high school senior Zack Siler is devastated when his girlfriend, Taylor, dumps him for a reality TV star. To save face and prove his social superiority, Zack boasts to his friends that he can turn any girl in the school into the next prom queen. His friends accept the challenge and randomly select Laney Boggs, an artistic and solitary girl who is more interested in painting than in fitting in with the popular crowd. Despite initial resistance from Laney, Zack gradually earns her trust and starts helping her transform into someone who can contend for the prom queen title.

As Zack spends more time with Laney, he learns about her passions and starts to genuinely care for her, realizing that his superficial bet may have deeper consequences. Laney, in turn, begins to open up and reveals a more vibrant side of herself while also developing feelings for Zack. However, as prom approaches, unexpected complications and revelations arise, testing their budding relationship and forcing both Zack and Laney to confront their true feelings and intentions.