This bundle includes the following:

• Exclusive Day 1 Mission (Single-Player and Co-op) - a top secret item is in danger of falling into enemy hands... Pagan Mins forces cannot be allowed to use it to their advantage! You must stop them from recovering the item first and using it against the rebels. 
• Valley of the Yetis Campaign - your helicopter has crashed on an unforgiving Himalayan ridge. Explore the frozen landscape and find tools to upgrade your camp and protect it by night from a dangerous cult. You are not alone, but will you survive? In the darkest caves, the yetis await their prey… 
• Escape from Durgesh Prison (Single-Player and Co-op) - you and a fellow captive have been rounded up and tortured in Yumas prison. Escape from the prison and survive the hostile lands of Pagan Mins Kyrat.
• Additional Multiplayer Mode (PvP) - get even more PvP action. Team up as Rakshasa or Golden Path and control a series of neutral locations across Kyrats countryside to protect them from being overrun by your opponents.
• More Missions and Weapons (Single-Player) - get 5 additional missions including Yak Farm, Blood Ruby, and Hurks Redemption, plus 5 more weapons.

Unlock all upcoming Far Cry 4 add-on content, including the Valley of the Yetis campaign, Overrun – a new exclusive PvP mode, plus more missions and 5 additional weapons.

About the base game:

A trip to the most famous mountain range in the world turns from daring to deadly. You are Ajay Ghale, a young man returning to the country of your birth in the Himalayas to fulfill your mothers final wish. She had fled from civil war in Kyrat 25 years ago and has asked you to return to scatter her ashes. What she hasnt told you is that your family, the Ghales, founded a rebellion that is struggling, fighting a war against a despotic, self-appointed King, Pagan Min.