Warner Bros. Pictures has released a trailer for The LEGO Ninjago Movie, which is based on the bestselling ninja-themed line of LEGO building sets, books and graphic novels.

The synopsis reads: In this big-screen Ninjago adventure, the battle for Ninjago City calls to action young Master Builder Lloyd, aka the Green Ninja, along with his friends, who are all secret ninja warriors. Led by Master Wu, as wise-cracking as he is wise, they must defeat evil warlord Garmadon, The Worst Guy Ever, who also happens to be Lloyd’s dad. Pitting mech against mech and father against son, the epic showdown will test this fierce but undisciplined team of modern-day ninjas who must learn to check their egos and pull together to unleash their inner power of Spinjitzu.

Papercutz had a successful series of graphic novels which sold over 2 million copies before the license was scooped up by rival publisher Little, Brown (see “Papercutz Loses Lego License to Little, Brown”).

The movie opens in theaters on September 22 (see “Best in Shows--Q3 2017”).