Invasion of Astro-Monster

Original title: 怪獣大戦争

“The great fierce battle between Godzilla, Rodan, and King Ghidorah that will sway the ruler of the Universe, Planet X!”

Directed by Ishirō Honda

Astronauts Glenn and Fuji investigate Planet X and encounter mysterious aliens known as the Xiliens, who ask Earth's people to help save their world from "Monster Zero". In exchange for borrowing Godzilla and Rodan, the Xiliens offer a cure for cancer. As Glenn investigates, he develops a romance with Miss Namikawa and uncovers the Xilien's true intentions.