Gravion
超重神グラヴィオン
We checked 8 streaming services in India on 04 Jun 2026 at 14:18 IST
About
The year is 2041 and the Earth’s only defense against mysterious aliens is a group of six young fighter pilots, two boys and four girls, backed by an enigmatic billionaire. The kids are serious in their mission and, although their teenage antics add humor, they always end up learning the value of friendship and teamwork - especially at the end of each episode when the battle calls for them to merge their fighters and form GRAVION, the most powerful defense and attack robot on the planet!
Cast
Kenichi Suzumura
as Eiji Shigure
Hikaru Midorikawa
as Raven
Haruna Ikezawa
as Luna Gusuku
Houko Kuwashima
as Leele
Show Hayami
as Klein Sandman
Jun Fukuyama
as Touga Tenkuuji
Mai Nakahara
as Eina
Saeko Chiba
as Faye Xin Lu
Ai Uchikawa
as Tesera
Akane Oomae
as Cecile
Fumihiko Tachiki
as President
Haruko Momoi
as Tria
Hideki Tasaka
as Ooshima
Isao Yamagishi
as Takasu
Junichi Suwabe
as Alex Smith
Kiyomitsu Mizuuchi
as Angle
Kurumi Mamiya
as Anya
Masumi Asano
as Kaori
Masumi Asano
as Stephanie
Mikako Takahashi
as Tuile
Seasons
Season 1
The year is now 2041 AD. A new enemy called Zeravire suddenly appears in the solar system, destroying all military installations it comes across. However, a wealthy man named Klein Sandman is already aware of this planned invasion and had been secretly preparing his army for battle. His trump card is Gravion, a giant robot that utilizes gravity as its source of energy. Meanwhile a young man named Eiji secretly enters Sandman's base in search for his missing sister. It is there that he meets another young man by the name of Toga... These two must now fight together with four other individuals aboard the super robot, Gravion to fend off the Zeravire threat.
Season 2
After Gravion was able to use its ultimate attack, the Zeravire threat seemed to have temporary stopped. However when it rises back up all of a sudden, the Earth Gult and its trump card, the super robot Gravion, is needed to defend this world again. All this while, the EFA is planning to create their own weapons to counter the Zeravire, the Grand Trooper. Now as they attempt to fend off the Zeravire, the people of the Earth Gult and EFA must protect their future as well as confront their pasts, and unveil the mysteries of the Zeravire.
Episodes
Season 1
Fortress of the Diety
While searching for his missing sister, Eiji Shigure secretly enters the castle of millionaire Klein Sandman. There he meets the castles strange inhabitants and is selected to join in Sandmans mission to stop a destructive alien known as the Zeravire. The teams weapon, a series of fighting robots designed by Sandman called the Gran Kaiser and the Gran Divas who when needed join together to form Gravion.
Mission of Gravity
The newly formed Gravion faces off in their first battle against the Zeravire and the pilots discover their weaknesses. Meanwhile The Earth Federation Alliance plan their own attacks on the Zeravire.
Labyrinth
Eiji begins to get used to life in Sandman's castle and to the castles inhabitants. As he and Toga venture to the forbidden area of the castle in search of Eiji's sister Ayaka and the identity of the G-Shadow's pilot, Raven attempts to convince the EFA to allow Earthgertz to take the lead in the defense against the Zeravire.
The Princess in the Tower
When a ghostly figure is sighted in one of the castle's towers, Toga and Eiji go to investigate. There they discover Leele, the mysterious pilot of the G-Shadow.
The Girl Who Wouldn't Laugh
In an effort to get to know each other better, the team goes on a picnic together but Leele is hesitant to share as she is haunted by nightmares of her past. Meanwhile the EFA attempts to find information of Sandman.
Toga's Day Off
Eiji sneaks out of the castle during the staffs shopping day and takes Toga along with him for his first day out of the castle and his first day in the big city. As the maids search for them, the Zeravire launch an attack on the city.
Drill Girl on the Beach
On the anniversary of her father Isanas death, Luna returns home to the island of Okiaowa but is surpirsed when she finds that the rest of of the Gran Knights have decided to accompany her to the have some fun on the island. But all fun is soon ended when the Zeravire target the International Peace Conference for their next attack.
Storming the Castle
When the Zeravire attacks the the castle, all hope of stopping it lies with Eiji, who has accidentally found himself piloting the Gran Kaiser. To survive he must call upon all the power of the Gran Kaiser and all that his body can withstand.
Where does Gravion rank today?
Gravion is #738 on the Bowood.TV Daily Streaming Charts today.
- Highest: #738
- Top 10: 0 days
- Top 100: 0 days
Watch Gravion Online Free — All Episodes in HD
Looking for a place to watch Gravion online for free? You've landed on the right page. Gravion is a popular Japanese animation, comedy, and action & adventure series from 2002 that you can stream right now on Bowood.TV in high quality, no signup required.
About Gravion
The year is 2041 and the Earth’s only defense against mysterious aliens is a group of six young fighter pilots, two boys and four girls, backed by an enigmatic billionaire. The kids are serious in their mission and, although their teenage antics add humor, they always end up learning the value of friendship and teamwork - especially at the end of each episode when the battle calls for them to merge their fighters and form GRAVION, the most powerful defense and attack robot on the planet! Across 2 seasons and 25 episodes, originally airing on Fuji TV.
Gravion Cast and Characters
The cast features Kenichi Suzumura (as Eiji Shigure), Hikaru Midorikawa (as Raven), Haruna Ikezawa (as Luna Gusuku), Houko Kuwashima (as Leele), and Show Hayami (as Klein Sandman). Their performances are a major reason Gravion has built such a passionate audience.
Where to Watch Gravion Online
Bowood.TV lets you stream Gravion online free, instantly, in HD. There's nothing to install — open the page, hit play, done. Works perfectly on Jio, Airtel, Vi networks across India and on slow mobile data thanks to our adaptive video pipeline.
▶ Watch Gravion NowWhy People Are Watching Gravion
Gravion flies under the radar but it deserves your attention. What makes it work is sharp comedic timing that lands consistently and action sequences that don't feel cheap. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Gravion
Where can I watch Gravion online for free?
You can watch Gravion online free on Bowood.TV. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Gravion have?
Gravion has 25 episodes across 2 seasons. All episodes are available to stream right here on Bowood.TV.
Is Gravion good? What's the rating?
Gravion holds a 6.2/10 rating based on 12 reviews — a solid pick if the genre interests you.
Who is in the cast of Gravion?
The main cast includes Kenichi Suzumura, Hikaru Midorikawa, Haruna Ikezawa, and Houko Kuwashima, plus a strong supporting ensemble.
Is Gravion available in Japanese?
Yes — Gravion was originally produced in Japanese and that's the version you'll stream here on Bowood.TV. English subtitles are provided when available.
When was Gravion released?
Gravion first aired in 2002.
Do I need an account to watch Gravion on Bowood.TV?
No. Bowood.TV is free and you can watch Gravion without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed Gravion, check out RPG Real Estate, Tropical-Rouge! Precure, GOOD NIGHT WORLD, Sushi and Beyond, and The Iceblade Sorcerer Shall Rule the World.
Frequently Asked Questions
Where can I watch Gravion for free?
You can watch Gravion online for free on Bowood.TV. All 25 episodes across 2 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Gravion have?
Gravion currently has 2 seasons and a total of 25 episodes. The series status is "Ended", so the episode count may grow as new seasons are released. You can browse the full episode list on Bowood.TV and continue watching from where you left off.
What is Gravion about?
The year is 2041 and the Earth’s only defense against mysterious aliens is a group of six young fighter pilots, two boys and four girls, backed by an enigmatic billionaire. The kids are serious in their mission and, although their teenage antics add humor, they always end up learning the value of friendship and team… It belongs to the Animation, Comedy, Action & Adventure genres.
In which language is Gravion originally available?
Gravion was originally produced in JA. On Bowood.TV the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.
When was Gravion first released?
Gravion first premiered on October 8, 2002 (2002). The series has since concluded its run.
All Seasons
Browse every season of Gravion — 2 seasons in total
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