Op-Op the Triceratops: A Cretaceous Christmas Tale is the story of a young Triceratops who learns the true meaning of Christmas. Op-Op is hoping to get a jet-powered skateboard for Christmas, but his hopes are foiled when he finds a golden egg under the Christmas tree. The moment he gets the egg, Op-Op begins an unexpected adventure. Along the way, he finds out that while siblings might be a pain in the frill, they are still good to have around.