Seulgi, Irene, Joy, and Yeri have been living a normal life for over a year, going to school and doing their work before starting the same process all over again the next day. It's been a long time since they've been to Narnia, so imagine their surprise when they find themselves back into the magical land to aid Princess Wendy.

Wendy is the current heir to the throne of Narnia, but her status is thrown for a loop upon the birth of a son to the current king. Knowing that she stands in the way of this new son's future, Wendy makes a run for it, escaping to the woods where remnants of Old Narnia lay before accidentally calling the Kings and Queens of Old with a blow of Irene's horn. The group of five prepare to take back the kingdom and set things right.

War is coming.