Lionel's many school-related adventures include a nervous Back-to-School night with his parents, the welcoming of a new classmate, a sister who doesn't seem to recognize him, and an experiment with time.

Lionel enjoys the longest day of summer, celebrates the Fourth of July, has a lemonade stand, and travels on vacation with his family.

For Lionel, fall means starting a new school year, raking leaves, and getting to dress up as a knight and chase a dragon from house to house on Halloween.