Claiming the title of ultimate dinosaur expert is a huge responsibility, especially on the day of a massive class field trip. Second grader Ali Tahir is absolutely buzzing with excitement as his class heads off to explore the wonders of the natural history museum. Eager to impress everyone, Ali loudly brags to his friends that he knows absolutely everything there is to know about prehistoric creatures. He is ready to lead the way and identify every fossil in sight. But as they move through the towering exhibits, Ali starts confidently mixing up his facts. When his mistakes are pointed out in front of the entire group, his grand reputation crumbles, leaving him blushing and deeply embarrassed. Being a self proclaimed pro is much less fun when you get the facts wrong! However, as the museum tour continues, Ali begins to realize that nobody knows everything. Discover how a humbling moment turns into a valuable lesson about accepting mistakes, asking questions, and keeping your curiosity alive in this charming school day adventure.