After a year of peace following the Star Force's heroic return, a new peril emerges from the depths of space. The colossal White Comet streaks towards the galaxy, carrying the ominous Comet Empire set on conquering Earth. Disregarding commands, the Star Force launches into space to confront this imminent threat. Their journey is fraught with peril as they face the formidable flagship Andromeda, unaware of the full extent of the danger posed by their mysterious adversary.