Since the events of the first Ultraman, many years have passed. The famous 'Giant of Light,' though only a memory, is thought to have left Earth and returned to his home planet. Shinjiro Hayata learns about his father's past as Ultraman. Shinjiro inherits his father's mantle as the new Ultraman of the Earth.
The 2019 Ultraman anime's plot was inspired by writer Eiichi Shimizu and illustrator Tomohiro Shimoguchi's Ultraman manga series from 2011.