Droners

Oro accidentally angers the Planktons and they cause Maroro to crash in the frozen area of Tortuga. However, when they go back to get him back to the Tikis, they do not find him: he has been taken by the "ghost of Tortuga". Even if the Rust Queen forbade them from going there, the Tikis would not abandon Oro, and the Planktons would tag along.