So, humans and aliens… why? How? Who are these aliens, what species, how did they get here? Was it FTL or STL? Do they have a ship or did they come some other way? Are they exiles, refugees, dissidents, criminals, terrorists?! (Yes! 8-P)

How about this- our government, or at least the Deep State, has been in communication and negotiating with the aliens for decades. There are secret treaties. There are also alien factions and dissidents or exiles trying to live quietly on Earth.

Interstellar transport is by stargate, and this is a precursor technology which the aliens, who are just a little bit ahead of us, found, figured out, and used. They can’t make them, but the stargates can be damaged or destroyed…