Boris lives in a greenhouse in Kent, along with many other tomatoes and vegetables. One evening, when the weather is overwhelmingly hot and stuffy, all the inhabitants of the greenhouse get on edge, and it is in this bad climate that Boris, the biggest and cleverest of the tomatoes, hatches his dastardly plan. Most of the plants think that the tomatoes are as thick as two short planks, but Boris is going to change all that - his plan is to take over...