The merging of the sixteen worlds has created an entirely new and chaotic dimension. A new generation of heroes joins forces with the Elemental Dragons to save this new world. Arin, a ninja fan and Spinjizu amateur, must find his way in this new world. He competes in mech races with his girlfriend Sora in self-built racing mechs when a little dragon named Riyu appears shortly before their destination. Exciting adventures await our new heroes from Ninjago!