After the Saint Squadron Saint Five defeats the Underground Empire Gedra and restores peace to Earth, a new threat emerges. Gedra's remnants reappear under the name "New World," seeking revenge. The Saint Five headquarters, which had believed peace was secure, receives sudden emergency reports of suspicious individuals appearing at the Omega Six Theta and Epsilon Three locations. Blue and Yellow head to the respective sites, but at Epsilon Three, they encounter unknown soldiers and monsters. This battle becomes a great trial for Saint Five.