Ninjago is a popular animated television series created by The Lego Group. It follows a group of young ninjas who are trained in martial arts to protect their world from various villains. The main characters include Kai, Lloyd, Zane, Cole, Jay, and Nya, each with unique abilities and elemental powers. The series is set in the fictional land of Ninjago, where the ninjas battle against evil forces like Lord Garmadon and The Overlord. The show combines action, adventure, and humor, appealing to both children and adults. It has also inspired a successful line of Lego sets and spin-off media.