The secret base of a long time great empire, from the remains of poisonous substances in rusty tanks, was long abandoned. Only a group of soldiers left to guard was still keeping order here. However, nothing lasts forever and the rotten tanks leaked. The cloudy liquid from the cracks quickly evaporated, poisoning everything around. The people nearby were covered with terrible bubbles. Only you who were in the building were lucky. Now, having put on protection, you have to destroy all charged.