When the Pteranodon kids decide to draw some maps, Don's map of one big land mass for "the whole Mesozoic" triggers a discussion on whether the Mesozoic is "one big place that's all connected" or comprised of a bunch of smaller, interconnected land masses. On the Dinosaur Train, the Conductor explains that millions of years ago there actually was just one big land mass called "Pangaea". Then, over a long period of time, it started to drift apart and form separate, smaller landmasses, or continents. Our family can't believe it. The Conductor offers to take the Pteranodons up in the Zeppelin and through a Sky Time Tunnel, back to the time of Pangaea. At the Zeppelin Station, they meet up with Tricia Troodon, who helps pilot the Zeppelin on their journey. Once in the sky and through the time tunnel, our family is able to see Pangaea, the one giant landmass, just as it's starting to break apart. Then the family travels forward in time and views the continents separating more as oceans and...