North Africa, 100 million years ago. A Spinosaurus father must embark on a dangerous voyage to feed his babies.

Utah, 130 million years ago. A band of armoured dinosaurs battle to reach adulthood, pursued by a group of Utahraptors: some of the most formidable predators that have ever lived.

Seventy-one million years ago lived a teenage Albertosaurus - a faster, nimbler relative of T. rex. She had to earn her place in a deadly, ferocious pack or risk starvation.

Based on an unprecedented discovery in Alberta, Canada, this episode tells the epic tale of one of the largest dinosaur herds that ever lived, the Pachyrhinosaurus, through the eyes of one of its youngest members, Albie.

The tale of the colossal Lusotitan. Living 150 million years ago on an island known as the Iberian Mesta, now in Portugal, this 25-metre-long titan dwarfed every other dinosaur in the region.