AVClub: The chief lesson learned from Defiance’s third-season premiere: this show might have finally decided to solve its identity crisis. From the beginning it’s been unclear what Defiance has been going for. Is it a gritty post-apocalyptic tale of complex morality? A sci-fi police action-adventure? A Star Trek/Babylon 5-style celebration of diversity and classical liberalism? Or a Lost-inspired journey through mythology? Defiance has tried on all of these outfits, with wildly varying results.