In Ultraman Taiga Ep. 22: What’s Up With Takkong?, a mysterious boy suddenly appears in front of Hiroyuki. The boy predicts the emergence of the kaiju Giestron after the kaiju Takkong emerges from the ocean, and soon his words come true. The kaiju Giestron appears from underground! The boy states that the Earth is in danger, and in order to save the Earth, Hiroyuki and his Ultra Buddies need to find a way to defeat Giestron! Will Hiroyuki and Taiga be able to save the Earth?