Pokemon Season 12 - Episode 591 – Pillars of Friendship!

Pokémon Hunter J arrives in Snowpoint City and targets the legendary Pokémon Regigigas, which is sleeping inside the Snowpoint Temple. After J commands her henchmen to launch an attack, a maiden from the shrine asks Ash and his friends for help. But Ash and the others come too late; Regigigas has been reawakened and starts rampaging. J froze Regirock, Registeel, Regice and Brandon. Regigigas proves too much for her to handle and for the first time J is forced to retreat. Maria went up to Regigigas and apologized it for awakening it and asked it to help them. It then agreed and used its powers to remove the petrification from Brandon and his legendary Pokémon. After being thanked by Brandon, it turned back into an orb. Just as the sun was about to set, the group returned to Snowpoint Temple. Brandon said that, to prevent Regigigas from awakening again, he will rebuild the temple and let Regice, Registeel and Regirock protect it, just like the legend. Brandon told Maria that they will work together to protect the sleeping Regigigas.