It has been six years since Rion learned that he was an artificial being and was able to destroy the genocidal computer, Dorothy, before dying. However, he has been brought back to life by Lilia only to discover that Dorothy was able to set off one last devastating program, resulting in a new team of villains determined to continue her mission of annihilating humanity. Galerians, a popular PlayStation game released in August 1999, serves as the inspiration for this fully 3D CGI animated OVA.