One day, Usagi Tsukino, clumsy 2nd-year middle school student, stumbles upon a talking cat named Luna. Luna tells her that she is destined to be Sailor Moon, "champion of love and justice", and she must search for the fabled Moon Princess. Usagi finds friends that turn out to be destined senshi as well, and together they fight to save the world from the certain doom brought upon by the Dark Kingdom.
Usagi and Naru both dream of becoming stars like Mikan Shiritori, a graduate from their school. When the girls hear that Mikan is holding a talent contest, they see their chance to achieve stardom.
The Sailor Guardians go to the Dream Land amusement park, where visitors have reportedly gone missing. The team splits into two groups: Usagi and Rei and Ami and Luna. But, much to Rei's frustration, Usagi is more focused on playing than finding the missing people.
Usagi and Ami go to the city to enjoy some shopping, where they find a clock store selling a clock that resembles Luna. Later that day, Usagi is happy to learn that her mother bought the exact same clock as a gift. But that night, the clocks from the store emit a strange light, making Usagi and the rest of Tokyo very impatient.
Several people who take the bus near the Hikawa Shrine have gone missing. Usagi, Ami, and Luna decide to investigate by visiting the shrine. There, they meet Rei Hino, a shrine maiden with strong spiritual powers.
Queen Beryl is increasingly furious with Jadeite for his repeated failures; he starts up a theme park, but the general public notices the large number of disappearances. Usagi and Rei, who is now Sailor Mars, begin their combative friendship.
One of Queen Beryl's youma offers to help Jadeite with his wicked plans. Rei wins tickets on a luxury cruise ship and, since she has no boyfriend, asks Ami to accompany her. A jealous Usagi sneaks aboard after them.
