They're bringing in a big apple harvest at the farm. The robots, Lifty and Skoop are putting the apples away in the barn. The shelves in the barn are very high. Even Skoop can barely reach the top shelf and he can't stack the boxes safely. What was that sound? Oh! A box fell right on top of Skoop and Lifty! It must be time to build a new machine: a forklift truck with very big forks. That'll be able to reach the top shelves.