Alex Russo brings a mischievous and exceptionally powerful student, Billie, to her brother Justin's home in the hopes of coaxing him out of retirement to teach her.

On her first day of school, Billie uses magic to impress Roman's best friend. But when a jealous Roman steals Billie's wand, he falls into the grasp of a wizard-hunting phantomus!

When Billie uses a spell on her BadgerBook profile and accidentally enchants her classmates, she must find a way to break it to get everyone back to normal!

Billie gets wizard help to finish her homework and meets a member of the Russo family. Justin runs into an old mentor while Billie uses magic on Roman's Homecoming parade float.

After discovering that Billie and Roman are missing, the Russos work together to rescue them from an evil villain's clutches.