A solar flare. A cosmic, planetary or geothermic anomaly of some sort. A giant E-bomb or a series of E-bombs strategically placed world wide.
Whatever the cause - A blackout. A global blackout. Inductors, transistors, integrated circuits and vacuum tubes. All of it, toast.
I am not going to ask what the world wide reaction would be to such an event or what steps would be taken by nations of great political and military power like the U.S., Russia, Great Britain, China or Japan. Nor am I inquiring as to whether society as a whole would break down into anarchy or would we all just come togather, hold hands and start singing 'Kumbaya My Lord'.
No, my question is this: If there was an international blackout - what would "YOU" do? Where would you go? Would you go anywhere at all? What would be your gameplan?
(Bare in mind that if there was a "global" blackout, for obvious reasons, it would most likely be an extensive amount of time before you knew about it)