Nexo Knights (stylized in all caps) is a 3D animated television series that aired on Cartoon Network and premiered in 2016. It was produced by The Lego Group to coincide with the Lego theme of the same name. The series is based on a fantasy castle concept and is set in a futuristic kingdom called Knighton, which is home to five young knights. The storyline follows the adventures of the five knights as they defend their home from a court jester named Jestro and his monsters. Four seasons were produced for a total of 40 episodes. The fourth season finished airing in 2017. In 2018, The Lego Group discontinued the Nexo Knights theme, which also resulted in the cancellation of the series.