Season 4 - Episode Guide

When a strange, dried-out creature washes ashore downriver from a nuclear power plant, some experts suspect it's the mummified corpse of a mutant; using the latest science and tech, this incredible theory is put to the test.
 

Moments before Pablo Escobar's abandoned luxury building is demolished, cameras capture footage of a figure in the window, and some believe it was the notorious drug lord himself; experts investigate who this phantom was and what happened to them.

When cameras record a strange creature in the wilderness perform an incredible feat of strength, some suspect it's hard proof of Bigfoot; using cutting-edge science, experts investigate if they've discovered the spawn of Sasquatch and Iron Man.
 

When cameras capture footage of a swam of millions of strange creatures invading a church, some wonder if it's evidence of a grisly secret buried in the ground below; using cutting-edge tech, experts investigate the threat this insect army poses.
 

Cameras capture something shocking in a cemetery: empty graves, as if the dead walked out in the middle of the night; using cutting-edge tech, experts investigate what's behind this apparent evidence of zombie activity.
 

When cameras capture footage of a highway swarmed with snake-like creatures and an unexplained ooze, experts investigate the origins of these alien creatures; the latest tech reveals where they came from and their top-secret purpose.
 

When cameras capture footage of a massive, never-before-seen sea creature in mysterious waters near Japan, some experts wonder if it's an undiscovered underwater monster; using cutting-edge tech, investigators hunt for this beast of the deep.

A family encounters a wall of fire that erupts along a Beijing highway. When cameras capture footage of a strange, blob-like alien in the Amazon jungle, some experts suspect that the origins of this monster are stranger-than-fiction; using cutting-edge science, investigators try to explain this bizarre beast.
 

When cameras capture footage of a strange, human-sized egg floating in Arctic waters, some experts wonder if it's evidence of alien life; using cutting-edge technology, investigators try to reveal the true origins of this unexplained discovery.

After cameras capture footage of a UFO over Las Vegas, officials claim it's just a meteor, but some suspect something far stranger; using cutting-edge tech, experts investigate if it's evidence of an alien visit or a top-secret military project.

When cameras capture footage of a man who appears to lay an egg, some experts wonder if it's evidence that scientists created a human-reptile mutant through gene manipulation; using cutting-edge tech, investigators put this horrifying theory to the test.