GAMERA-Rebirth-

Six-graders Boco, Junichi and Joe were enjoying their summer vacation. It was strangely rainless summer, but other than that, it was just like another summer.
Three boys knew it was their last summer together.

Same summer, deep inside a mine tunnel in New Guinea, an investigation team found something. No one knew they were creatures...terrifying creatures.

(Source: Kadokawa)