The green ninja / West, Tracey

Lord Garmadon is up to his old tricks. He's using his Mega Weapon to turn back the clock and bring the fossil of an ancient monster back to life. That's when Cole, Jay, Kai, and Zane interrupt him . . . and get turned into kids again! Now the mini-ninja must do whatever it takes to grow up . . . and stop the monster from destroying Ninjago City!.

Ninja friends Cole, Jay, Kai, and Zane try to prepare a reluctant Lloyd, the Green Ninja, to face his father, the evil Lord Garmadon. When Lord Garmadon creates a beast named the Grundle, and turns the ninja into kids again, it's up to Lloyd to save the day. However, in doing so Lloyd magically grows older and closer to his destiny as the Green Ninja.

When Lord Garmadon uses his mega weapon to turn back the clock and bring an ancient monster back to life, the Ninjago try to stop him, but end up being turned into children instead.

Kai, Cole, Zane, and Jay face a new challenge when Lord Garmadon uses his Mega Weapon to bring an ancient monster to life.