Story is pretty simple.
Bad motherfuckin aliens want a piece of the holy ground ass, because some alien with them communication skills has lead them to believe the holy grail is theirs if they get that piece of ass.
Meanwhile these bitches started raining on humanity's gay parade through space, and you know how cigarillos get when bitches start acting wild, they call their buffed up friends to fuck you up.
Shit's up when the holy ground is actually holding the fucking devil, the apocalypse.
Add some guns, some drugs, some of that robocop shizzazle and you got one awesome action story. If you don't get the appeal, you are small minded and i don't give a shit anymore, there are faults in its delivery, but the written universe and motifs are GREAT.