The tale of one of the largest dinosaurs ever to walk the earth, a colossal, long-necked Lusotitan. Living 150 million years ago on an island known as the Iberian Mesta, now in Portugal, this 25-metre-long titan dwarfs every other dinosaur in the region. Yet its intimidating size is only part of the story. The ultimate goal of the male of the species is to win over a female and secure his legacy. It's a quest that sees him embark on an epic journey as he risks his life for love.

Based on an unprecedented discovery in Alberta, Canada, this episode tells the epic tale of a Pachyrhinosaurus herd, one of the largest dinosaur groups that ever lived, through the eyes of its young member Albie.

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.

Today, palaeontologists in western Canada are unearthing her remains, allowing us to imagine her story. Based on real-world evidence, stunning VFX recreate her encounters, from hunting pterosaurs to fighting the dominant matriarch and battling for survival in the brutal late Cretaceous world.

Utah, 130 million years ago. A band of armoured dinosaurs battle to reach adulthood, pursued by some of the most formidable predators that have ever lived: utahraptors. It's a deadly game of cat and mouse that pits heavy armour against vicious claws and lethal cunning; a life-and-death struggle that builds to a final showdown amongst the flames of a burning forest.

North Africa, 100 million years ago. A Spinosaurus father must embark on a dangerous voyage to feed his babies. To reach the destination, he must lead his young family across one of the deadliest environments in earth's history: a land crawling with ferocious predators. At the end of their journey, an extraordinary feast awaits - if he can run the gauntlet without his babies becoming someone else's meal.

Sixty-six million years ago, an orphaned baby triceratops roamed the lush world of Laramidia, alone and vulnerable. Stalked by the fearsome Tyrannosaurus rex, the youngster relied on her wits and diminutive size to survive.

Today, paleontologists in Montana are uncovering her fossils, allowing us to imagine her life and the dangers she faced. Stunning VFX recreate her encounters, from escaping a giant pterosaur to a heart-stopping face-off with T. rex, bringing her story vividly to life.