You don't have much time. A toxic nerve agent is blanketing Jefferson City. I might be able to get you out, but you need to stay focused and keep your head on straight. It's not going to be easy, but if you can use your head you just might stay alive. If you're not alone your chances of survival will be higher. Lean on your wits and the wits of your friends to solve a series of puzzles to get what you need to get out of the city. You can get clues if you need to, but don't forget about the deadly hot zones and remember to equip the right items from your inventory to protect yourself from the air around you.