A couple of general impressions: Colony now feels a little like FlashForward (cars suddenly stopping when the aliens arrive), Lost (prelude flashback), and even Fear the Walking Dead (the dawn of apocalypse). All of that of course makes sense - especially given that star power from Lost (Josh Holloway) and The Walking Dead (Sarah Wayne Callies, not Fear the Walking Dead, buy close enough) are in Colony.
Colony was also a successor, from day one, to Falling Skies and its alien invasion, except we never saw the aliens per se in the first season. Now we finally get to see ... well, not quite the aliens, but more of their ships and hardware. We did see a big tall something, but it's not clear if that's an alien, robot, or even a tall co-opted human.
The prelude was generally satisfying, though - and, like everything else these days, like The Man in the High Castle, especially disquieting because ... you know why, look at who's set to be sworn in as President next week. So Trump has had the unintended benefit of giving any show about a near-future or alternate history totalitarian state in the US a little more of an edge than it otherwise would have had.
But this first episode of the second has set the board nicely, and put the pieces in motion. The first season had lots of potential, only some of which was realized. I get the feeling that the second season will do better, and I'm looking forward to it.
See also Colony 1.1: Aliens with Potential ... 1.2: Compelling ... 1.5: Questions ... 1.6: The Provost ... Colony 1.7: Broussard ... Colony 1.8: Moon Base and Transit Zones ... Colony 1.9: Robot Arm ... Colony Season 1 Finale: Not Quite Enough
not exactly aliens, but strange enough ... The Silk Code