The Valley of the Yetis DLC for Far Cry 4 is due for Windows tomorrow, and Ubisoft celebrates with a new walkthrough trailer for the DLC. Word is: "In this new campaign, you will have to explore and survive a frozen wilderness at top of the Himalayas in Kyrat. Your helicopter crashes and leaves you stranded on a perilous ridge, hounded by a mysterious cult that hides a terrible secret based on ancient legends. To stay alive, you must capture a camp, fortify it, and defend it from waves of attackers under cover of darkness. But even if successful against the cult, you will still have to face the fabled and dangerous yetis that prowl the frozen wastes."