Toho has revealed production of a follow-up to “Godzilla: Planet of the Monsters,” the first Godzilla feature animation, which opens today in Japan.

“Godzilla Kessen Kido Zoshoku Toshi” (literally, Godzilla: Battle Mobile Breeding City) is set to open in May of next year. The setting for the new film is a dark future in which surviving humans battle a Godzilla who has ruled the Earth for the past 20,000 years.

The two films are part of a planned trilogy, but Toho has not divulged plot descriptions of the succeeding two films. It has released a teaser visual showing humans emerging from rubble. They confront a monster looking somewhat like “Mechagodzilla,” a Godzilla robot doppelganger who first appeared in the 1974 Ishiro Honda film “Godzilla vs. Mechagodzilla.”

“Monsters” is directed by Kobun Shizuno and Hiroyuki Seshita, with Toho Animation and Polygon Pictures handling production. Following its theatrical release in Japan, “Monsters” will be streamed by Netflix globally.