Lego Ninjago is a popular animated television series and toy line created by The Lego Group. It follows a group of young ninjas, each with unique abilities, as they protect their world from various villains. The main characters include Kai, Lloyd, Zane, Cole, Jay, and Nya, who train in martial arts and use their skills to battle evil forces. The series is set in the fictional land of Ninjago, which features a mix of traditional Asian culture and modern elements. It has expanded into movies, video games, and a wide range of merchandise, making it a significant part of the Lego franchise.