A monster drawing doodled on a concrete pipe by a young boy named Mushiba suddenly comes to life! Exposed to solar radiation infused with mysterious cosmic rays, the doodle materializes into Gavadon, the Two-Dimensional Monster.
Although Gavadon does absolutely nothing but sleep peacefully, its gigantic presence becomes a major nuisance to the city. To resolve this chaotic situation while safeguarding the pure dreams of Mushiba and his friends, Ultraman steps up to find a gentle solution.
