Deadly Dinosaurs S01E02 - Deadly Defenders

Steve Backshall goes on a mission to track down the deadliest of all dinosaur defenders. He meets the armoured tank that is Nodosaurus, he tests whether an Iguanodon really has what it takes to beat a T-rex, and thanks to some mega-engineering he unleashes an Ankylosaurus tail-swinging robot that goes on the rampage and then some!