Terryman, Robin Mask, and the other Justice Choujins are participating in a tournament in New York. Suddenly, Akuma Shogun (not the same as the guy from the series) arrives and defeats all of the Justice Choujins and absorbs their power... all except Kinnikuman (who was late for the tournament because he was busy eating gyuudon). Now Kinnikuman must defeat Akuma Shogun, whom now posseses the combined strength of all the Justice Choujins.

"Kamen Rider SD: Strange!? Kumo Otoko" is an animated OVA based on the gag manga Kamen Rider SD: Hurricane Legend. This cute and comedic short movie features chibi versions of the Showa Era Kamen Riders, as they team up against the evil GranShocker organization, while Kamen Rider Black RX tries to confess his love to female sports instructor Michiru.