Kamen Rider Build NEW WORLD: Kamen Rider Cross-Z is a post-series V-Cinema film of Kamen Rider Build. It will focus on the character of Ryuga Banjo, Kamen Rider Cross-Z, along with Kamen Rider Prime Rogue. It was announced immediately following the broadcast of the final episode of Kamen Rider Build. The film will have a limited theatrical release in Japanese theaters before its home video release. This is the last Kamen Rider movie to be released in the Heisei era.

When Amanda and friends stumble across an old boat, they think they have found an ideal secluded party spot. Drinking too much and cranking up their music they have no idea that they are disturbing the boats violent sole occupant- a scarred figure with a painful past and a dark secret. Soon this mysterious violent man begins to pick off the unwelcome visitors and adds them to his macabre collection in the meat locker. Amanda thinks help is at hand with the arrival of another group on board but the newcomers have their own agenda and wont let anything get in their way.