I didn't find the storyline very compelling, but basically this is about a little guy (Bumblebee, the smallest Transformer) who demonstrates that he can be a useful member of the team despite (or even because of) his size. If you have a child who only shows interest in books that feature his favorite characters, or if you have a kid who is small for his age and needs a little encouragement about his size, then I guess this is okay, but know that there is some violence. In the future I think I can find some better, classic children's books that champion the underdog. I'm giving this three stars because my son seems to like it okay, although I wouldn't say it's one of his favorites.