Lele teaches a lesson on the environment at Annuccia's school and becomes a hit with his daughter's classmates. Meanwhile, Bianca's ex-husband, trying to put a spoke in her wheels, is determined to win over little Inge by any means necessary. A bolt from the blue strikes Bianca: the chocolate shop has been put up for sale. Furious and fearful for the future, she finds herself weighing her ex-husband Gus's offer. Meanwhile, Grandma Enrica plots to bring Maria and Marco closer together.