Underwater UFO highway? Earth's deepest waters

Ross Coulthart, NewsNation correspondent and host of Reality Check, investigates unidentified phenomena beneath the water. The episode raises the question of whether an underwater UFO “highway” could exist in the ocean’s deepest waters, placing the mystery within the show’s broader coverage of unexplained phenomena.

Reality Check describes its approach as fact-based, but the existence of such an underwater route is not confirmed here. The episode explores the possibility as a mystery, rather than presenting it as an established fact.