Carol Anne and Andrew Smith have been sibling rivals since Carol Anne was born in 2014, but now that Andrew's 10 and Carol Anne's 6, they are both learning to get along and love each other and how they depend on each other, more than ever before, from bullies picking on Carol Anne to kids now teasing her because a few boys in her First Grade class are attracted to her, Andrew is always right there to stand up for his little sister, showing this unshakable bond that the two siblings who were once bitter rivals, have for and/or with each other.