Steve Backshall explores the connections we have with insects and other arthropods. In Kenya huge armies of driver ants give houses a five-star clean up and in China we discover how silkworm caterpillars have shaped our culture and distribution. While locusts devastate crops in Africa, bees and beetles across the world provide a key link in our food chains. Many of us perceive these animals merely as creepy crawlies and nothing more than a nuisance, but as Steve reveals, we couldn't live without them.