Yuuta Hibiki wakes up in the room of Rikka Takarada and notices two things: he has no memories, and he can hear a mysterious voice calling his name from a nearby room. On further inspection, he finds a robot—which introduces itself as Hyper Agent Gridman—behind the screen of an old computer. Much to Yuuta's surprise, Rikka cannot hear Gridman, nor can she see the ominous monsters looming over a thick fog as it envelopes the town outside.
Another giant monster materializes in the city and proceeds to wreak havoc. Amidst the confusion, Yuuta is once again drawn to the old computer and merges with Gridman. Suddenly, he appears in the middle of the battle and is forced to fight the monster. Together with Rikka and fellow classmate Shou Utsumi, Yuuta forms the "Gridman Alliance" to defeat the monsters plaguing the city and find whoever is responsible for their emergence.
[Written by MAL Rewrite]+ More
Characters & Voice Actors
Recommended for you
Utopa
Movie
23m
Planetes Picture Drama
Special
3m
Fire Emblem
OVA
27m
Chiruran 1/2
TV
2m
Iczelion
OVA
27m
Dimension Movement of Nazca
TV
24m
Obsolete
ONA
13m
Ariel Deluxe
OVA
42m
Bakugan: Battle Planet
TV
24m
Relic Armor Legaciam
OVA
49m
Bakugan: Armored Alliance
TV
24m
Divine Gate
TV
23m
Black Lion
OVA
42m
Condition Green
OVA
25m
Dream Dimension Hunter Fandora
OVA
40m