The following Zombie modes are available in Black Ops II:

TranZit:
Dig into the conspiracies and lore of Zombies by exploring the entire county. Be forewarned: it takes serious time, skill, and effort to uncover all of the secrets of TranZit.

Survival:
Need a quick fix of Zombies mayhem? Survive as long as you can in one of the three subdivisions of Green Run with limited resources.  How long will you last in the Town, the Farm, or the Bus Depot?  

Grief:
A spin on the survival game-type – Competitive Cooperative – pits two teams against each other in one of Green Run's two custom-fit locations. Compete to survive the longest, and "grief" the opposition to win.