Witnesses around the world claim to have spotted mysterious sea creatures, but are these survivors from the age of the dinosaurs or just mistaken sightings?
WATCH ONLINE, MOBILE, FREEVIEW 63, SKY 164, FREESAT 162 AND VIRGIN 216
Episodes
Season: Season 2 Episode Guide
3 - Monsters of the Deep
4 - Crop Circles
Thousands of crop circles have been reported. Most are dismissed as hoaxes, but could some be from another world?