Philippe Cousteau explores the various ways our planet is always in motion.  We’ll visit the volcanic Mt. Saint Helens in Washington, where the movement of the earth’s crust caused this mountain to erupt and create devastation in 1980.  We’ll also discover how mountains are formed and earthquakes are caused.  Then we’ll look at how our oceans and waterways are in constant motion.  And then we’ll see how our planet itself is speeding through the galaxy at unimaginable speeds.