Griffins, The Kraken, giant sea creatures... We've all heard stories about these strange and unidentifiable creatures. Now, using a combination of eye-witness accounts, scientific fact and CGI, these animals are brought to life by credible and expert investigators in a series that journeys to the very frontiers of knowledge. Each episode takes an iconic mystery animal and for the first time, scientifically investigates it. A team of 'Beast Seekers', made up of leading zoologists and specialist scientists, take an iconic mystery animal and for the first time, scientifically investigate it.