Dr Karl explains how most of the water in the world was created at the moment of the Big Bang. It's still being made across the universe whenever oxygen and hydrogen get together under the right conditions, but none of it's getting to Earth.
As we live our lives, an array of invisible forces are exerting their influence on us. Gravity pulls you into the seat. Light waves hit you from the screen. Sound waves roll in from everywhere. Electromagnetic radiation from around the universe races through your entire being and if it weren't for the nuclear forces holding every sub-atomic particle in your body together you would fall apart. In short you would cease to exist. This show is all about Force. That immutable, invisible thing that makes the world 'go round'.
Classic car fanatic Mark Evans goes in search of one of the world's most exclusive cars: the Jaguar Lightweight E Type. This is a car that no amount of money can buy - you have to be invited to purchase it. Mark seeks to understand the world of classic cars and discover what makes them so special and desirable. He visits the Jaguar factory to see the progress of the build meeting dedicated car collectors along the way. He also attends important events in the classic car calendar.