Episode 5

S1 E5: A rock-like object was found in a construction side. While Go and Kishida were arguing about how to deal with it, Underground Monster Gudon appeared in a quarry. On the other hand, Ancient Monster Twintail came out of the rock-like object, bringing panic to Tokyo's Shinjuku, the subcenter of Tokyo. Go transforms into Ultraman to fight Twintail, until Gudon came as well