![](https://cdn.animecharacters.io/images/anime/large/1809-d022968e.jpg)
Format
TV
Episodes
74
Episode Duration
25 min per ep
Status
Finished Airing
Premiered
Fall 1975
Aired
1975-10-05 to 1977-02-27
Source
Manga
Rating
PG-13 - Teens 13 or older
Genres
Mecha
Sci-Fi
Shounen
Studios
Toei Animation
Producers
Fuji TV
Dynamic Planning
Licensors
UFO Robo Grendizer (UFOロボ グレンダイザー)
Duke Fleed is a survivor of the Fleed Planet who is escaped to the Earth, onboard a mysterious "spaceship", where is raised by Dr. Umon as his adoptive son, and known as Daisuke Umon. Years after his arrival, he's faced with the threat of King Vega and his army, who want to conquer the Earth. With his friends Koji and Hikaru (and later his younger sister Maria Grace), Duke decides to fight back using his best weapon - the almighty Grendizer.