Geologists use plate tectonic models to project what Earth's surface will look like hundreds of millions of years into the future, when today's continents have drifted into entirely new configurations. The film from the Naked Science series walks through the mechanics of plate movement, from seafloor spreading to continental collision, using animated maps to show landmasses merging and splitting over deep time. Researchers explain how the Atlantic could eventually close, how Australia might collide with Asia, and how a future supercontinent could reshape climate and ocean currents worldwide. Interviews with geophysicists ground the speculation in the same evidence used to reconstruct past supercontinents like Pangaea, showing how scientists read millions of years of rock and magnetic data to run the process backward and forward. The pace is brisk, moving between present-day fieldwork and computer-generated future maps, treating a subject usually left to textbooks as an active, ongoing process rather than a finished story.