The Zula Patrol - Mine Shaft
In Mine Shaft, Dark Truder is at Zula's mines and he switches the labels of the minerals being shipped out to manufacturing plants, so everyone gets the wrong materials. Truder then poses as a home redecorator and gets the Zula Patrollers to replace their old equipment. Soon, at Zula Patrol headquarters and all over Zula, vehicles and buildings shake like jelly, drills are too soft to drill, pencils break clipboards, and nothing is working like it should. The Zula Patrol take off in their new wobbly ship to investigate what is going on and make things right again.