Nada pura 100%

One spring morning Little Pig meets a strange scientist, profesor Campbell, in the wood. Curious and well-meaning, Little Pig wants to become the professor's assistant, ready to follow him on his great adventure with science and, of course, to carry his suitcase.
The distinguished professor gets hold of a family-sized tin of Nothing. It's not a product of any sort, it's 100% pure Nothing.When he opens the tin, the Nothing comes out and gradually takes over everything: it swallows up the tin itself, a string of spicy sausages, the 3.15 express train, and the Viuda de Andrade Universal Circus. Perplexed and intrigued, and convinced of his scientific vocation, the professor decides to go into the Nothing-Hole to investigate this extraordinary event.