Kamen Rider Super-1: The Movie

Kamen Rider Super-1 is a movie based off the Kamen Rider Series entry of the same name. It sees Super-1 teaming up with the previous eight Kamen Riders.

Synopsis
The Dogma Kingdom attacks the Matagi (mountain tribe) village of Yamabiko to steal the sacred Flying Dragon Fortress and wreak havoc all over Japan. Six children from the fallen village take refuge in a nearby town, keeping their identities as Matagi citizens a secret. Kamen Rider Super-1 must protect these children from the Dogma Kingdom, as they hold the secret to the Flying Dragon Fortress' weakness.