Dana is a fiesty 10-year-old ‘paleontologist in training’ who eats, sleeps and breathes dinos. So much so that her Dad made her a special backpack that she can transform to look like any dinosaur she wants. Dana and her 12 year old sister Saara are at the Aquarium when Dana tells Saara a fantastical story about a time travelling submarine that takes them on a journey to hunt the prehistoric Megalodon (the biggest shark ever).