Humanity enters the galaxy and makes First Contact, only to begin to realize that not everything is at it seems. It appears that the galactic alien community has forgotten to invent some rather important economic concepts that human civilization has taken for granted.
This is a look at a hypothetical galactic scale barter economy, how that would work, or how as one of our main characters Sarah realizes... it doesn't.
And as the galaxy falls apart at the seams, it's up to the best and brightest in humanity to put things back together.
Story contains a lot about markets, logistics, development, and the best and worst of human history. Not so much Space Marines nuking aliens.
If that interests you, welcome aboard!