Since Master Wu's disappearance, the ninja team has been adrift and scattered to the four corners of the island. When a deadly biker gang known as the Sons of Garmadon steals a supernatural Oni Mask, Lloyd realizes he must call the ninja back to Ninjago. Our fearless warriors are tasked with protecting the royal family and preventing the two remaining Oni Masks from being stolen. The criminals plan to unite the three masks to resurrect the King of Shadows himself: Lord Garmadon.