After Bart blows up the school bathrooms by flushing a cherry bomb, Principal Skinner persuades Homer and Marge to take part in a student exchange program. Bart will study in France for three months, while the Simpsons take in a student from Albania. So Bart is packed off to France.
However, when he arrives, Bart finds that the place is a dump, and he is staying with two crooks, who work him hard and put anti-freeze in the wine they make. Meanwhile, the rest of the Simpsons experience family bliss when their exchange student, Adil Hoxha, is the perfect child.
However, on a trip to the power plant, Adil takes photos of the equiment, and relays them back to his home country. Meanwhile, Bart is sent to town to get more anti-freeze, where he miraculously learns to speak French all of a sudden, and tells a policeman about the crooks. Bart is returned home, while Adil is exchanged for an American spy caught in Albania.