Because this is Part 4, the world is even worse than before, making Mr. Ebert's observation more valuable. So there. Why do these people keep experimenting on the T-Virus? How will they benefit from it? Do they plan to get rich? But almost everyone's a zombie. Do they plan to conquer the world with it? What's to conquer? Almost everyone's a freaking zombie. Anyway, Alice is in Alaska, looking for people who will not try to eat her. She only finds Claire, and together they fly to Los Angeles for reasons that the movie never bothered to explain, but no worries. They spot a few survivors trapped inside a building surrounded by zombies.