Palaeontologist Dr Tori Herridge presents a new series exploring exciting subjects from Britain's history, from a huge meteorite that landed in Scotland, to a sea beast battle in England's Jurassic Park and the amazing story of the last mammoths to graze British grasslands, just 14,000 years ago. North-west Scotland's beautiful coastline is one of the most mysterious parts of Britain. Tell-tale signs in its craggy cliffs reveal that an extra-terrestrial object landed there 1.2 billion years ago. In this episode, Tori joins Dr Mike Simms of Ulster Museum in search of the asteroid and impact crater of this ancient catastrophe. If they find it, it will be one of the world's biggest impacts, and the only asteroid crater found on mainland Britain.