After being injured by Team Plasma's attack, N falls unconscious and Anthea & Concordia appear and take N away to a lake where N starts to heal. Cautious about Ash's presnece, Anthea & Concordia explain that the area is a special place where Pokémon and humans come to be healed of their wounds. Giving the history of the area, Ash & Co learn of N's past and how he is connected with Team Plasma. However, when Team Plasma find the place and attack, Anthea & Concordia accuse Ash & Co of assisting Team Plasma to find the area, but change their mind when they see them try to protect it from Team Plasma. Will they succeed?

Arriving at the Dragonspiral Tower, Ash & Co. learn that Cedric Juniper has discovered the location of the White Ruins, where the Light Stone is found, which can be used to awaken Reshiram. When they enter the White Ruins and find the Light Stone, it becomes engulfed with light and N soon appears. Asking what Juniper's intent is with the Light Stone, N reacts badly and takes the Light Stone from him. However, soon afterwards, Team Plasma appear with intent on the Light Stone. Will Ash & co. be able to stop them?