Gamera, exhausted from destroying Legion, faces a growing swarm of Gyaos. A young girl, consumed by grief over her parents' deaths, befriends a mutated Gyaos named Iris, and together they nurture a hatred for Gamera. As Iris matures, it becomes a formidable monster seeking revenge against Gamera.

Gamera 3: Revenge of Iris
Gamera, having broken free from human connection, must now face a revitalized Gyaos menace.