S1, E5: In the mid-Cretaceous, Australia, Antarctica, and South America are still connected in one super continent. This is a time when the South Pole is a huge polar forest, where for five months of the year, the sun never sets. The Antarctic forests are a land which time forgot, where allosaurs still prowl the forests and ancient amphibians still hunt along the river banks. We fellow a year in the life of a clan of small dinosaurs, Leaellynsaura, and their struggle to survive in this unique environment.