News reporter Ichiro Sakai and photographer Junko Nakanishi take pictures of a wreckage caused by a typhoon and they uncover a giant egg on the shore. The local villagers salvage it, and an entrepreneur of Happy Enterprises named Kumayama buys the egg. Instead of letting scientists study it, Kumayama wants to make it into a large tourist attraction. So the greedy developer unwittingly hatches a gigantic baby moth upon Tokyo, while Godzilla strikes once again.
