Sailor Moon is a fanfictional American live-action series based on both the Japanese tokusatsu television series Pretty Guardian Sailor Moon & media franchise of the same name. While just a basic retelling of the first act of the manga series, there are some notable differences from the manga & anime versions, like how one of the team members turned evil near the end of the show, & one of the members dying. Another difference is that most of the characters' names are changed into more Western names.
A great evil, consisting of Queen Beryl, her four generals, & an amorphous evil power known as the Negaforce attempt to steal energy so that Beryl can take over the world. Standing in their way are the Sailor Scouts, five middle-school-aged girls: perky Serena Moon, genius Amy Waters, paranormally gifted shrine maiden Raye Tyson, tomboyish Lita Fay, & teen pop idol Mina Lennon; two beings that appear to be sentient stuffed cats (Luna & Artemis); & Tuxedo Mask, a jewel thief in search of a Silver Crystal. Later in the series, the Negaforce & Sailor Moon each get too powerful to be reined in, & the conflict shifts to attempting to postpone the inevitable destruction of the planet Earth. (It looks like Earth is plunged into darkness & not actually destroyed per se, but the effect is the same.)