Season 1 is quite gripping. The characters are fleshed out very well at the start, itself. The story is not predictable and it really feels like every bit of 80s sci-fi gold.

Season 2, however, is like a bad X-Men comic and felt heavily bloated, uninspired and boring. Season 3 is more of the same, except the focus is a lot more on the kids' relationships with each other , which can be a good thing if done right, but it's not done too nicely here.

Watch Season 1 and give the rest a skip, because this show is a lot hype and people buy into hype easily.