It's one of my favorite shows. A friend told me about it and we started watching together. He dropped out a couple episodes into season 1. I can't stop watching. Apocalyptic sci-fi's force you to use your imagination but they also make you think about our morality and how the things we are doing to this planet are so messed up. Right now we cannot inhabit another planet or live in space so if the planet dies so do we. It's not too late to change.
Now onto the show. Each episode draws you in more and more. You'll be sitting on the edge of your seat or dug into the couch, eyes wide open, heart racing, not knowing what is going to happen next. Have an open mind. Watch the show.