When Adelaide annoys Bailey, their entire preschool class gets upset, one child after another, until Zelda zaps Adelaide and a round of apologies begins.
A mouse named Wemberly, who worries about everything, finds that she has a whole list of things to worry about when she faces the first day of nursery school.
Four-year-old Sam's appearance as a zookeeper at his nursery school's Future Job Day leads him to a number of exciting activities and discoveries, including reading.