Astronauts Glenn and Fuji venture to Planet X, a newly discovered world beyond Jupiter, to investigate strange occurrences. Meanwhile, Fuji's sister Haruno and her inventor boyfriend Tetsuo Torii create a sound device sold to a toy company. Upon arrival, Glenn and Fuji encounter the Xiliens, aliens seeking Earth's help to defeat "Monster Zero" and save their world. In exchange, they offer a cancer cure. As Glenn delves deeper, he falls for Ms. Namikawa and uncovers the Xiliens' sinister motives.

Info about Monster Zero
Studio(s): TOHO, United Productions of America
Originally Released: United States, Jul 29, 1970
Production Countries: Japan, United States
Box Office Gross: $2,131,500.00
Monster Zero: Where to Watch Online?
Currently, you have the opportunity to watch "Monster Zero" by streaming it on the following platforms: Max, The Criterion Channel or alternatively, you can enjoy it completely free of charge with advertisements on the following platforms: Crackle. Additionally, viewers have the option to either rent or purchase "Monster Zero" on the following digital platforms: AppleTV, VUDU.