Call of Duty: Ghosts video provides insight into Extinction: Episode 1 Nightfall

Call of Duty: Ghosts has a new video available for Extinction: Episode 1 Nightfall.

Here's the synopsis:

At a remote facility in the Alaskan wilderness, the shadowy Nightfall Program has been researching the origins of the "Alien" threat. When the scientists lose control, a small team of elite soldiers must retrieve the intel, exterminate hordes of hostile creatures, and survive a three-story tall terror unlike anything they've faced before.

Nightfall, the first installment in Extinction's four-part episodic narrative, launches with the Onslaught LDC drop on January 28 on Xbox systems.