This four-episode series from PBS and BBC focuses on the unseen elements that have kept Earth moving since its creation billions of years ago. Episodes illustrate how humans experience natural forces such as shape, elements, color and motion, and their consequences. The series touches on understanding shapes in nature; how Earth's chemical elements came together; how Earth's colors were created and the energy they carry; and the consequences of the motion caused by the forces of nature, from tidal bores in the Amazon rainforest to hurricanes.