a meteorite with strange powers lands on Earth, and eventually is given to the Science Patrol. however, a thief steals it, and then uses it to further his schemes.
this is all well and good until he imagines a monster- Gyango, who promptly drops the ceiling on the thief, sending him into a coma.
this allows the monster to cause havoc, and since it's not "real" Ultraman is hard put to stop it.
this is not one of my favorite episodes, though I don't hate it or anything. it's supposed to be funny, and the fight between Ultraman and Gyango is a bit amusing. but mostly it seems like a filler episode.