/lit/ - Literature

I had a pretty comfy idea for a story come to me in a dream a couple of days ago, and I've been fine-tuning it in my head to be something more complete:
The Earth is on a direct collision course with a foreign body, some sort of Planet X-type celestial debris from outside our solar system, and it's going to obliterate the fuck out of the Earth. When this news is confirmed to the world, all order goes to shit.
The story follows a group of teens/young adults who, having been close friends for a long time, take this horrific news and use it to finally do what they've always wanted: go on a cross-country road trip.
Along their chaotic adventure (the world is so fucked from this news), these people learn the value of life, how to cope with death, and how some would rather live blissfully ignorant of their impending doom.