A hidden door. A magical staircase. Discover the world of Droon! Move over, Lord Sparr-there's a new bad guy in town. Prince Maliban is the creepy ruler of the Turtle City. And Maliban's mysterious mask maker, Hob is crafting an awesome new mask. The mask is very cool but very powerful. So Eric, Neal, and Julie have to make sure the mask doesn't fall into the wrong hands otherwise, it could mean serious trouble for Droon.