A quick trip to the grocery store for an onion is about to change everything for fourth-grader Gloria. While running her errand, she bumps into a real astronaut named Doctor Grace Street! Doctor Street shares a secret with Gloria: the problems that feel gigantic right now are not always as big as they seem. That is exactly what Gloria needs to hear, because her teacher troubles feel absolutely enormous. Mrs. Yardley, also known as the Dragon of Doom, does not seem to believe anything Gloria says. Things get even worse when the class bully, Billy Watkins, causes trouble for everyone. But Gloria remembers the wise words of her new astronaut friend. When nobody believes her amazing story about meeting Doctor Street, you will watch Gloria find the courage to stand up, tell the truth, and prove herself. Sometimes, all it takes is a little bit of confidence to rise above your biggest challenges.