Aboard the Timeline follows the journey of Pete, an ordinary boy who is struggling with boredom and monotony at school. He gets more excitement than he bargained for when time suddenly stops around him and he is inexplicably greeted by a talking dinosaur called Reginald at the classroom door. Trying to figure out what has happened, the two of them embark on a journey of adventure and discovery. They meet Philosophocles, an ancient Greek thinker and the three companions travel along the Time Line, visiting alternate versions of history, including the Cretaceous period, ancient Greece, the Viking North Sea, Medieval Istanbul and Victorian London. Along the way, they meet tricky demons, strange creatures and interesting companions. Can Pete become the hero that some need him to be? And will he ever find a way back to the normal world?