When a terrifying tower of fire is caught on camera, eyewitnesses fear an alien invasion, and using cutting-edge science, experts investigate the threat causing this nightmarish phenomenon—and if a cover-up is hiding the truth.

When footage of a strange deep-sea vessel is uncovered, experts wonder if its evidence of an autonomous alien craft sent to explore earth, and using cutting-edge tech, investigators follow the clues to an unexpected explanation.

When a bizarre, alien skeleton is found in an abandoned compound in the Himalayas, some speculate that it's the corpse of a newly-dead dinosaur, and using cutting-edge tech, experts investigate if it's evidence of a top-secret Jurassic Park.

When something strange is caught on camera in a tunnel beneath the Colombian jungle, experts wonder if it's a wormhole to far-off places in the cosmos, and using cutting-edge tech, they investigate if there's an interdimensional conspiracy at play.

When something strange is recorded flying in Mexico, some wonder if it's a witch reputed to kidnap children, others believe it's evidence of a new way to smuggle drugs or top-secret technology; the latest science helps experts investigate the truth.

When a mysterious fog and a huge explosion strike at once, some suspect a napalm attack on American soil, but using cutting-edge tech, experts find that the truth could be more dangerous than ever imagined.

In Egypt, a freakish animal is caught on camera, and using cutting-edge tech, experts investigate if this strange beast could explain the secrets of a satanic deity that was once believed to have been worshiped here.

When a massive plume of smoke suddenly erupts from the ground in Manhattan, experts investigate if this terrifying event is evidence of a volcano that's waking up beneath the streets of New York City—and if it's almost due to blow.

When a ghostly encounter in a cemetery is caught on camera, experts use cutting-edge tech and the latest science to investigate if something paranormal is at play.

On a Native American reservation in Utah, evidence of a man transforming into an animal is caught on camera, and some experts ask if it's proof of a Skinwalker, a legendary evil creature that can shapeshift into a deadly beast.