Evie and heroes encounter the Snow Queen dealing with her manipulating Emma to her cause. Meanwhile, Regina seeks the Author of Henry's Once Upon a Time book so that she can finally have her happy ending. However, Mr. Gold, with the help of Cruella De Vil , Maleficent has his own plan to rewrite the rules governing the fates of all heroes and villains. Henry,Emma, and Evie race to restore reality and the truth before the twisted inversion becomes permanent. However, the price leads to the ultimate sacrifice of Evie's soul.