The coming of Gigan! Ayan is the new captain of Starship Godzilla. As her mentors travel across the galaxy in hopes of ending the war, Ayan and company are sent to recruit potential allies. Their journey begins on the Simian homeworld, where they're tasked with resurrecting a forgotten city in order to gain the Simians' mighty allegiance... but a surprise visit from Kai-Sei Gigan will test the young captain and her crew's belief in her.