Brenda and Big Bill Glover are going to a meeting
at April's school, while Alice the Great has a doctor's appointment, so Little Bill will be getting a new babysitter: Mr. Rojas' niece, Isabel. Little Bill still misses his old babysitter, Mrs. Shapiro, so when Isabel arrives and asks what he wants to play, he skulks and says,"Nothing." Deciding to take the initiative, Isabel invents "The Nothing Game," saying he has to keep perfectly still, doing nothing, and the first one to move loses. This makes him laugh, so she offers to make dinner while he plays in his room. He finally warms up to her when he learns Isabel loves his favorite TV show, Space Explorers, and makes up a funny game playing "the friendly alien from the 4th galaxy meets Captain Brainstorm."
When Brenda and Big Bill come home at the end of the episode, April and Bobby aren’t seen with them, even though their parents went to Parents Day for them. It’s possible that they did come home with them, but they just immediately went upstairs or went to a different room.
Parents Day seems to be a school event, but Little Bill doesn’t even go to school in this episode.