How have plankton shaped life on Earth? What role do they play in our lives? "Ocean Drifters, a secret world beneath the waves" is a short film about plankton written, produced and directed by Dr Richard Kirby (Marine Institute Research Fellow, Plymouth University) with a narration by Sir David Attenborough and music by Richard Grassby-Lewis. This resource explains how plankton underpins the marine food web, created our oil and gas, and shaped the landscape around us.