Sabrina's 17th birthday turns stressful when she has to start studying for her witch's license.
When Sabrina switches personalities with Libby, she uses her magic and newlyfound popularity.
Will, Lisa and Ashley all get caught lying and suffer the consequences.
Regina hires and beautifies a new assistant (Cee Cee Michaela), then fears Steve may be trying to woo her.
Joan struggles with Toni's betrayal; Maya questions whether it is she or her marriage that has changed.