Ultraman S37E17 - Snow Blossoms

Using a new weapon developed by the NDF, humanity achieves its first solo victory against a kaiju! However, the kaiju, which was clearly defeated and dead, suddenly reanimates! The KSCT and the NDF coordinate a defense strategy, but the situation rapidly worsens. To discover the weakness of this "immortal" kaiju, Sorato and Sayuki fly to the permafrost of the North!