Something incredibly dramatic happens in a few years, and all of the important people in the world are herded into vast underground complexes throughout the earth that were developed over the past 50 years by various governments. Another group of humans reside on mars, with the knowledge that galactic changes are occuring that influence our star and all of the climates of each planet in our system. Mars is about to be reborn into a fertile planet that will be the new home of humanity. You have the choice to either stay on the surface of the now devastated earth, and evolve on your own, or stay underground with the copycat system of governments that will ensure that all will run just as it had before, a duplicate federal government, duplicate IRS, underground cities and an inventory system that would make walmart employees collectively commit suicide, and this system is present throughout the interior of our planet. There is "civilization" underground, and the scarred remnants of what once was above ground. You don't get to go to mars, though. Mars is the fail-safe. Mars is our insurance policy.
So what do you do?