Pokémon S16E23 - Ash and N: A Clash of Ideals!

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?