To face this new threat, a brave and energetic young man named Kaito Goshikida inherits the powers of all previous Super Sentai.

Transforming into Zenkaizer, he joins forces with the Kikainoids Juran, Gaon, Magine, and Vroon to save the multiverse from Tozitend and find Kaito's missing parents as the Zenkaigers.

Led by Zocks Goldtsuiker, who can transform into Twokaizer, the World Pirates oppose Tozitend in pursuit of their own objectives and occasionally ally with the Zenkaigers for the sake of it.

The reason why Zenkaizer was chosen as the leader despite being colored white is to ensure that he would stand out in future crossovers when grouped alongside other Red Rangers.

Although Zenkaiger is open to the idea of featuring past heroes in certain episodes, Shirakura mentioned that it will not be done in a similar way to Kaizoku Sentai Gokaiger.

[7] As members of the Zenkaigers combine to form the series' mecha, ZenkaiOh, the original plan was for their combined forms to appear human-sized at first, but as the show needed to keep up with the toy releases, this idea was scrapped and eventually implemented in the sequel series Avataro Sentai Donbrothers through the titular group's mecha, Don Onitaijin.

[2][11] Naoya Makoto, Kei Hosogai, and Jingi Irie reprise their respective roles as Tsuyoshi Kaijo/Akarenger, Basco Ta Jolokia, and Zamigo Delma.

[16] Actors Fuku Suzuki and Ayumi Tanida portrayed Shotaro Ishinomori and the film's main antagonist, Asmodeus, respectively.

[17][19][20] Additionally, the two main characters of the then-upcoming Kamen Rider Revice made their first appearances and a special film for the series was double billed with Super Hero Senki.