Mia's back! But her gang of friends is changing. Mia's parents sent her to a private school this year to bring her grades up, so her only chance to see her old friends Gauthier, Louka, and Zouzou is playing video games with them after school. There's a new tenant at Wilfried's place, a geek who has an interesting relationship with oven mitts. This year also brings a new challenge for Mia: a fighting-game tournament at the local video game store, with a mysterious new opponent. And there's still that haunted house around the corner...