A sleepover inspires Sarah, who likes to do things differently, to chose Mexico for her "Countries of the World" presentation.

Andy Shane hates school, mainly because of a tattletale know-it-all named Dolores Starbuckle, but Granny Webb, who has taken care of him all his life, joins him in class one day and helps him solve the problem.

When Iris's grandfather comes to her school as a substitute teacher, she has a hard time sharing him with the other students.