Arthur

S4, E2: Tormented by a secret related to her past, Sam does everything she can to avoid Antoine. When her class has a birthday party, they find out that one of her students can't have sugar. The father gets involved and Xavier makes Sam work on the issue with Antoine, who has now become the president of the parent-teacher association. Still in shock about the news he was adopted, Xavier refuses to meet his biological father. After Vero makes a confession about the father of her daughter, he starts to get closer and closer to her.