In the book, the world is getting hotter as a result of the two-legs (humans) burning too much oil, creating a big blanket around Earth that threatens all living things. All around the world, trees, flowers and plants are dying. Dave, a cherry tree, and his fellow plants need a plan, but they don't know where to turn. A year passes and the plants grow increasingly desperate. They are ready to give up until help arrives unexpectedly in the form of a huge, menacing spider and his loyal army. The spider says he has a plan to save the world, but the plan will involve hard work, pain - and some deaths.
The plants team up with the spiders to save the world from destruction. In a climactic ending with many twists, readers are kept guessing. Will the spiders' plan work? And will any of the plants survive their attempt to save the world?
Peter Grenville's story will raise awareness of the environmental damage that humans are causing and influence young readers to protect the environment as it brings the everyday garden to life. Inspired by Roald Dahl and Charles Dickens, The Big Plug will appeal to readers aged 5 years and over.