Straight-A student Emma Neuman is a doormat—her brother plays jokes on her and her classmates take advantage of her kindness and intelligence. So when Chris, the most popular guy in school, asks Emma to help him cheat on a school exam, she actually agrees to consider it. Soon after, she receives a magical necklace with three charms that grants her the power to “do-over” her day three times. With three chances to get it right, will she ultimately make the correct choice?