Ultraman sakusen daiičigó (E01)

A UFO is caught by radar over Tokyo. Captain Muramatsu sends Arashi to investigate. Alien creatures have frozen all those within. Hayata offers a chance to settle on Earth, although the Baltans-all 2.3 billion of them-have already decided on conquest. Only Ultraman stands in their way, repelling them with Spacium. He decloaks their ship and destroys it, dooming the Baltans but saving humanity. (Prime Video)