Ten-year-old Sierra Matisse is an intelligent, quiet girl who certain other children do not understand and make fun of. To them she is extremely unique, strange, and hard to figure out. Sierra even incites jealousy and intimidation within these children that cause them all to act out and behave ill towards the young child. As school children and neighborhood children band together to bully, control, and to ruin Sierra's sense of self-value to make her their easy target—Sierra turns the tables and surprises them with her extraordinary attributes bestowed to her by birth. Proving that she is the one to be feared, the children all learn a tough lesson in messing with the wrong kid—as it could inevitably cost them their lives.