'Big Mouth' is a powerful hydraulic crusher and he is hungry for cars. He can't wait to get them into his giant jaws so he can squeeze them and crush them flat. 'Forks' stuffs the old cars into 'Big Mouth', gives them a couple of pokes to make them fit and then stands back while the crushing begins. One, two, three, four. Four cars squashed flat as a pancake perfect for loading onto the transport truck which hauls them to the scrap yard.