I don't think the current IMDB score does the show any justice. Season 1 was slow, but over the next seasons, the show really gets much better - both the plot, and character building. It is not really a super-hero show, the main characters are (mostly) human, but this is where I feel it is better, because there are something to relate to. The screen play is well written, characters feel like flesh & blood, instead of just empty vessel. Highly recommended for anyone that is into sci-fi flicks.