You are a farmer who wants to make extra money by delivering the produce to the market. Of course, you never want any of your produce to fall off the truck, but accidents do happen. During these times, there is nothing that you can do as those produce will be worthless anyway even if you pick them up.
Help the farmer deliver the goods to the nearest market. Choose a produce that you want to deliver and make sure that you deliver them on time. A stage is usually composed of three levels that you need to pass before you can go on the next stage. Try to upgrade your truck or buy a better truck when you have the money as you are really going to need it as you progress in the game.