Some of the most terrifying and awe-inspiring events in the natural world surprisingly do not involve animals with jaws and claws.

‘Swarmchasers’ explores a phenomenon that can turn even the most innocuous creatures into killers – the instinct to swarm. In this action-packed series, hosts Steve and Greg head into the eye of the greatest animal plagues on the planet to experience their devastating power and discover what it takes to transform organisms into ferocious and deadly mobs.