Ultraman (1966)

S1E25 Mystery Comet Tsuifon

As a comet approaches Earth, its intense heat triggers the potential detonation of an unexploded nuclear warhead. After a thorough search yields no results, the team concludes that a monstrous creature must have consumed it. They soon confront three formidable monsters, but the real challenge lies with the new Red King, who is grappling with the warhead lodged in his throat. Halting this colossal showdown proves to be far more complex than anticipated, as they navigate the chaos of the Royal Rumble.