And what the heck did that final scene signify? You know, the one where we see a parent -- outside of the school -- with a dog. Seemingly the same dog Campbell seemingly killed around episode six.
We then see that same woman reading to a group of people. On the wall behind them hangs a large plaque with all the missing teens’ names engraved on it along with the words "We Remember Them."
Well, the EP and cast have a lot to say about that.
"There are a couple things [that scene means]," said creator and executive producer Christopher Keyser. "The first it needs to mean is that Earth exists. In other words, one of the big questions that this season asks and the kids ask is, 'Is there a place to go home to?' And they don't know the answer to that and they still don't know the answer but you and I do! So we have hope there. Where that ended, there is hope. I actually think it's more than about grief, it's about hope."
"We have a pretty good sense where we want to go in a second season if we are lucky to get there," he added.
As for whether or not we will see more parents in season two...
"That I don't know. You know why? Early on we talked about seeing the parents more and we pulled back on that," Keyser said. "I think now we have the flexibility to go back if we want to... We'll wait and see how that goes. I mean, it's interesting to take it to that perspective but we hate leaving the kids."
Alex Fitzalan, who plays bad boy Harry, also has a lot of thoughts about that ending scene -- and he may have dropped a super big clue.
"I think it is [a parallel universe]," he revealed to ET. "I don't know... I feel like I don't want to give away too much but in episode six there's a dog and everyone thinks that the dog was killed, but in episode 10, the dog appears again in the real world, or whatever this real world is, so maybe there is a way back?"
The dog he is referring to is the dog we mentioned above. You know, the one Elle takes a liking to... and then Campbell gets rid of.