Board Thread:Ninjago Wiki News/@comment-24475888-20180306215206/@comment-33707682-20180423110623

https://mastersofspinjitzusite.wordpress.com/2017/08/06/the-secret-behind-ninjagos-plot/

Link about this "plagarism". I didn't really include plot references, but more of how the seasons are structured.

The writers aren't tthat creative with their plot ideas, but as LegoFanNexo said, they add their own touch. That's how the show has lasted eight seasons and a special with these basic principles in mind.