Lego Ninjago

Lego Ninjago is a construction toy theme created by The Lego Group and launched in January 2011. It was conceived as a "Big Bang" product line with an intended three-year lifespan, but its phenomenal commercial success led to it becoming one of Lego's longest-running and most successful original themes. The theme was developed by a team of concept designers at Lego, with the story and world-building crafted by writers Dan and Kevin Hageman, who also helped shape the accompanying animated series.

The theme is centered on a fictional world inspired by martial arts lore, ninja mythology, and Eastern fantasy. It follows a group of teenage ninja known as Elemental Masters, each wielding a unique elemental power (such as fire, ice, earth, and lightning), who are trained in the fictional martial art of Spinjitzu by their wise mentor, Master Wu. The toy line features detailed construction sets including vehicles, dragons, temples, and fortresses, along with collectible minifigures representing heroes, villains, and mythical creatures.

Lego Ninjago's innovative blend of physical construction play with a deep, serialized narrative universe set it apart from previous Lego themes. The line expanded into a multimedia franchise encompassing animated television series, video games, books, theme park attractions, and a theatrical film. Its cultural impact is significant, having introduced millions of children worldwide to its characters and lore, and it remains a flagship brand for The Lego Group, continuing to release new waves of sets and media content well into its second decade.