Echo Creek Academy prepares for a football game against their rival school. Marco tries to protect Ferguson, who has become the team mascot, from being kidnapped. Star takes the concept of going to battle literally, and booby traps the field with bombs, evil kittens, and giant birds.

When the Diaz family receives a visit by their former foreign exchange student Gustav from Scandinavia, Gustav soon becomes the family favorite with his meatballs, that Star feels neglected. She senses something is wrong when she discovers Gustav harbors some books and media about how to act like a Scandinavian in his backpack.