Kamen Rider Gavv

Set between Kamen Rider W episodes 44 and 45, the film focuses on the invasion of Futo by the Special Mercenary Force "NEVER" led by a man named Katsumi Daido.

The universe is not just one. Within the overlapping layers of the multiverse, there exists another Earth that looks exactly like Earth. In "MultiEarth ?0073", which has entered an era of cosmic coexistence, crimes involving the exploitation of energy-based lifeforms known as "Emorgy" are breaking out one after another. Reiji Doki, an investigator for the Galaxy Federal Police, is Gavan Infinity, the only person in the universe permitted to claim the title of "Space Sheriff Gavan". However, he is stationed in the backwater Archives Department. His true objective is to investigate Emorgy crimes across dimensions. Chasing these inter-dimensional threats, Reiji leaps through space-time, encountering the Gavans of various dimensions and joining forces to bring justice to the multiverse. "Jo-Chaku!" The Space Sheriffs Gavan transcend the boundaries of the universe to strike down evil!

Katsumi Daido/Kamen Rider Eternal stars in his own movie, Kamen Rider Eternal, as part of Kamen Rider W Returns which was released on July 21, 2011. In the film, unable to properly synch with a normal version of the Eternal Memory, Jun Kazu assumes a weaker form of Eternal called Red Flare.

Gavv is the series following Gotchard. So if you want to watch the Kamen Rider seasons in order then you should watch Gavv after Gotchard.

This movie takes place in an alternate universe (where its storyline could be considered a prequel to the events of the TV series). In 1999, an enormous meteor crashed onto Earth carrying extra-terrestrial creatures. In order to counter this new threat, ZECT was formed. Seven years later, in the year 2006, power struggles in ZECT have caused a new group, known as Neo-ZECT. With three groups in existence (Neo-ZECT, ZECT and the Worms), Tendou has decided to sell his power to either Neo-ZECT or ZECT, but his intentions are unclear. ZECT reveal a plan to save humanity, but unknown to other is a plot to destroy man kind.

Both series are very serious Tokusatsu with silly moment also present. Both series have a dark story that deal with issues of family.

Zeztz is the series following Gavv so if want to watch the Kamen Rider seasons in order then you should watch Zeztz after Gavv.

Hidari Shotaro is a detective working in his beloved town Futo. But something is threatening the peace in the town - Gaia's memories, which turn people into monsters. Shotaro has a secret partner, and together they protect Futo.

New Ultraman, Shinji Kaminaga, a man who could transform into a building-sized hero when various creatures threatened his city.

College student and motorcycle enthusiast Takeshi Hongo is abducted by the evil organization Sustainable Happiness Organization with Computational Knowledge Embedded Remodeling, otherwise known as "Shocker", and converted into Batta Augment-01 as part of their plans for world domination. Before they can brainwash him to do their bidding, he escapes and uses his new enhanced abilities, renaming himself Kamen Rider, to wage a one-man war against Shocker.

Both series have a cheerful main character who has a sadder side. Both the main characters are determined to help people and inspire the people around them to help other two.