Ninjago (previously known as Ninjago: Masters of Spinjitzu until 2019) is a Danish-Canadian computer-animated television series produced by The Lego Group. It was created to coincide with the Lego Ninjago line of construction toys, which is based on the characters and events of the series. It centres on the fictional world of Ninjago, telling the story of a group of six teenage ninjas and their battles against the forces of evil. The series was created by Michael Hegner and Tommy Andreasen, two Danish film producers. The storyline was written by Dan and Kevin Hageman until the ninth season; their successor as the head writer is Bragi Schut. The show features a large ensemble cast of voice actors who have recurring roles in the series. The English-language voice cast has been recorded in Canada for its entire run. The music is scored by composers Michael Kramer and Jay Vincent.