A whole bunch of alien species must live alongside humans in the post-apocalyptic town of Defiance. Ok, fine. But consider: worldbuilding. Cultural conflict. Queer aliens. Queer humans. Mystery. Religion. Found family. Fictional languages done by the wonderful David J Peterson of GoT/Dothraki fame.
And I'm not even going to PRETEND that I don't think Doc Meh fuckin' Yewll is the greatest thing since sliced bread, or that I don't have a massive crush on her and on Trenna Keating.
Basically, please watch this show.