All around the globe, scientists are mapping the seabed, collecting data, and building up a picture of the terrain below the surface. With the very latest scientific data and specially developed computer animation software, you can now view the landscapes of the ocean floor. Pull an imaginary plug and drain all the water from the ocean. With no water, the planet looks completely different. This is the world we're going to reveal.

Planet earth, also known as the blue planet because three quarters of the planet is covered by ocean. In this episode we look at what most call “The Final Frontier”. Using the newest data gathered from scientists all over the world and the latest advancements in computer generated imaging, we explore some of the most dramatic landscapes the Earth has to offer. From the tallest mountain to fissures that would engulf entire countries, the ocean floor is truly a sight to behold.