Yoko wants to show her classmates the antique doll her grandparents sent to her for Girl's Festival Day, but when her mother tells her that she cannot bring the doll to school, Yoko decides to do it anyway.
Gus despairs of coming up with something interesting and impressive for his second-grade class's show-and-tell, until he gets a great idea while visiting Grandpa.
Little Critter wants to bring in the perfect thing for Show and Share with his class, but with so many options, he has a hard time making the right choice.
Jane Brain, the only non-monster at Frank N. Stein Elementary School, is unhappy because she is the only student who didn't find 100 items to bring for show and tell on the 100th day of school.
Beatrice enjoys learning to spell, and gets really excited about it after some encouragement from her grandmother, but she has trouble convincing her classmates that spelling is not boring.
Desperate to bring something exciting to show and tell at school, Ned invents a Mix-Up Ray and causes a commotion when Cathy becomes a yacht, the school bus becomes a sub, and his teacher, Mrs. Eton, becomes a monster.
When her brother catches a cold, Pinky Dinky Doo, an imaginative young girl, tells him a silly story about the time she and her classmates caught the Polka Dot Pox.