They insist that it is safe to do such a test, even though there have been accidents going on all day, such as computer crashes and equipment failures. Your are told it is extremely unlikely that something will go wrong, such as a Resonance Cascade scenario. Once the analysis is started, you are asked to put in a strange looking, crystalline sample into the generator. Then all hell breaks loose. The analysis of the sample apparently causes a Resonance Cascade.
Explosions go off everywhere, and attempts to shut down the generator are unsuccessful.
Suddenly, you're transported to an alien world, full of bizarre life forms. Then you get transported back minutes later, and find out that portals have opened up with hostile creatures from the other world pouring through. Many of your comrades lie dead from the accident, others killed or taken over by the aliens. You don't know, your only hope is to make it to the surface to find help. Upon reaching the surface, you run into the military.