Aliens have made contact with humanity. They are not here to take over; they just want to open an intergalactic gas station. So the Port of Earth is set up outside San Francisco and humanity receives water technology. Things aren't all great though. The new water technology puts a lot of people out of work and the aliens don't seem to like to stay in the port. They wreck havoc on earth causing property damage and costing lives. Two Earth Security Force agents are charged with tracking down a rogue alien and getting it back to port. It is a very sensitive time since the aliens in charge of the port are coming to town for a state visit. 

This is definitely a politically charged comic that speaks to a lot of things going on today. Corporate greed being the main one as politicians put corporations before the common good of humanity. It is a different take on the alien contact story.