Usagi Tsukino, a fourteen year-old eighth grader, discovers that she is the Sailor Guardian named "Sailor Moon".

Sailor Moon stands up to destroy Queen Metalia, who radiates a tremendously dark energy. The power of the "Legendary Silver Crystal" is finally released.

With Sailor Mercury, Mars, and Jupiter all in the hands of the Black Moon Clan, Minako suggests that she and Usagi talk to Chibi-Usa directly and get the information they need out of her on their new enemies so that they can rescue their fellow Sailor Senshi and eliminate the Black Moon once and for all. But the last of the Spectre sisters' is resolved to avenge her fallen sisters by turning all humans against the people of the White Moon.

With the supremely powerful Silver Crystals of the past and future in Prince Demande's hands, all is close to the point of annihilation. However, Sailor Pluto may have to pay the ultimate price to create a window of opportunity to allow Sailor Moon and the others to stop Death Phantom, and save both the past and future.

The final showdown between the true self of Wiseman and the newly formed six Sailor Senshi of the White Moon commences. Sailor Chibi Moon is ready to fight alongside Sailor Moon and save her homeland. But will their combined strength be enough to save both the past and the future?