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The UnXplained will tackle subjects that have mystified mankind for centuries, from mysterious structures and cursed ancient cities to extraterrestrial sightings and bizarre rituals. The series will also feature contributions from top scientists, historians, engineers and researchers - each seeking to shed light on how the seemingly impossible can happen.

In the frontier town of Nome, Alaska, there's a gold rush on. But you've never seen gold mining like this before -- here, the precious metal isn't found in the ground. It's sitting in the most unlikely of places: the bottom of the frigid, unpredictable Bering Sea. And there are a handful of people willing to risk it all to bring it to the surface in Bering Sea Gold.

Resident Alien is a dark, twisted and comedic fish-out-of-water story that follows a crash-landed alien named Harry who, after taking on the identity of a small-town Colorado doctor, slowly begins to wrestle with the moral dilemma of his secret mission on Earth — ultimately asking the question, "Are human beings worth saving?"

When revolutionary Dr. Hari Seldon predicts the impending fall of the Empire, he and a band of loyal followers venture to the far reaches of the galaxy to establish The Foundation in an attempt to rebuild and preserve the future of civilization. Enraged by Hari's claims, the ruling Cleons – a long line of emperor clones – fear their grasp on the galaxy may be weakening as they're forced to reckon with the potential reality of losing their legacy forever.

Based on an international hit, which already is a viral phenomenon with more than half a billion fans worldwide, and the No. 1 top-trending video of 2017 on YouTube, The Masked Singer features celebrities facing off against one another with one major twist: each singer is shrouded from head to toe in an elaborate costume, complete with full face mask to conceal his or her identity. Ken Jeong, Jenny McCarthy, Nicole Scherzinger and Robin Thicke serve on the panel and play detective, alongside host Nick Cannon.