The team has two very different cases to investigate, in two very different locations. Ben and his crew head across the Atlantic to the UK, where a mysterious video seems to show a large, non-native predator racing across the harsh terrain of Dartmoor. Local legend speaks of either a giant cat or the hounds of the devil himself. Local landowners just know it's killing their livestock. The team puts the legend to the test by getting up close and personal with the king of the jungle, and makes a shocking discovery out on the moorland.

In El Cajon, California, a series of sightings of a large triangular craft sent the UFO community into overdrive. The team heads to the scene to meet an eyewitness before heading to the desert to get airborne and try to explain whether this case is truly out of this world.

See photos from this episode.