Raina can't wait to be a big sister, but once Amara is born she realizes things won't be quite what she had expected. Despite Amara's cuteness, she is a cranky, grouchy baby. Their relationship doesn't improve much over the years but when their family starts to change, they realize they must figure out how to get along like real sisters.
Raina wants to be a normal 12-year-old. But when she trips and falls, severely injuring her two front teeth, she begins a long, frustrating journey with braces, surgery, hideous headgear and even a retainer with fake teeth attached. And on top of all that, there's a major earthquake, boy confusion and friends who turn out to be not so friendly.