Alexander's day begins with gum stuck in his hair, followed by more calamities. Though he finds little sympathy from his family and begins to wonder if bad things only happen to him, his mom, dad, brother, and sister all find themselves living through their own terrible, horrible, no good, very bad day.

Every kid wants to be cool and fit in - life's a blast even when you're different. When Mo's reflection is revealed, he sees a body that doesn't quite resemble any of his peers. Here, he tells the tale of his youth, growing up on the south shore of Long Island, New York