Haha I was being vague 'cause I still hope one of us will do it one day, but whatever! So we had this recurring main character who was like a big doofus type, and our idea was to have an alien invasion thing where the aliens come to try and steal Earth's resources, but the twist was that they really needed carbon dioxide for whatever alien reason, so their plan was just to remove all the CO2 from our atmosphere and then be on their way. Our idiot hero would set out to stop them, while everyone else in the world was like "no!"

There was some other character-specific stuff that wouldn't really make sense out of context, but that was the broad idea. Maybe he thinks that everyone trying to stop him is an X-files type conspiracy, that kind of stuff.